8927 lines
279 KiB
C++
8927 lines
279 KiB
C++
/*************************************************************************/
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/* gdscript_parser.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "gdscript_parser.h"
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#include "core/core_string_names.h"
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#include "core/engine.h"
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#include "core/io/resource_loader.h"
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#include "core/os/file_access.h"
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#include "core/print_string.h"
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#include "core/project_settings.h"
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#include "core/reference.h"
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#include "core/script_language.h"
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#include "gdscript.h"
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template <class T>
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T *GDScriptParser::alloc_node() {
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T *t = memnew(T);
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t->next = list;
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list = t;
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if (!head) {
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head = t;
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}
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t->line = tokenizer->get_token_line();
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t->column = tokenizer->get_token_column();
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return t;
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}
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#ifdef DEBUG_ENABLED
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static String _find_function_name(const GDScriptParser::OperatorNode *p_call);
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#endif // DEBUG_ENABLED
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bool GDScriptParser::_end_statement() {
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if (tokenizer->get_token() == GDScriptTokenizer::TK_SEMICOLON) {
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tokenizer->advance();
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return true; //handle next
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE || tokenizer->get_token() == GDScriptTokenizer::TK_EOF) {
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return true; //will be handled properly
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}
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return false;
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}
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void GDScriptParser::_set_end_statement_error(String p_name) {
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String error_msg;
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if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER) {
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error_msg = vformat("Expected end of statement (\"%s\"), got %s (\"%s\") instead.", p_name, tokenizer->get_token_name(tokenizer->get_token()), tokenizer->get_token_identifier());
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} else {
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error_msg = vformat("Expected end of statement (\"%s\"), got %s instead.", p_name, tokenizer->get_token_name(tokenizer->get_token()));
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}
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_set_error(error_msg);
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}
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bool GDScriptParser::_enter_indent_block(BlockNode *p_block) {
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if (tokenizer->get_token() != GDScriptTokenizer::TK_COLON) {
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// report location at the previous token (on the previous line)
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int error_line = tokenizer->get_token_line(-1);
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int error_column = tokenizer->get_token_column(-1);
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_set_error("':' expected at end of line.", error_line, error_column);
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return false;
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}
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tokenizer->advance();
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if (tokenizer->get_token() == GDScriptTokenizer::TK_EOF) {
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return false;
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}
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if (tokenizer->get_token() != GDScriptTokenizer::TK_NEWLINE) {
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// be more python-like
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IndentLevel current_level = indent_level.back()->get();
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indent_level.push_back(current_level);
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return true;
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//_set_error("newline expected after ':'.");
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//return false;
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}
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while (true) {
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if (tokenizer->get_token() != GDScriptTokenizer::TK_NEWLINE) {
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return false; //wtf
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} else if (tokenizer->get_token(1) == GDScriptTokenizer::TK_EOF) {
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return false;
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} else if (tokenizer->get_token(1) != GDScriptTokenizer::TK_NEWLINE) {
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int indent = tokenizer->get_token_line_indent();
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int tabs = tokenizer->get_token_line_tab_indent();
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IndentLevel current_level = indent_level.back()->get();
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IndentLevel new_indent(indent, tabs);
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if (new_indent.is_mixed(current_level)) {
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_set_error("Mixed tabs and spaces in indentation.");
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return false;
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}
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if (indent <= current_level.indent) {
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return false;
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}
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indent_level.push_back(new_indent);
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tokenizer->advance();
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return true;
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} else if (p_block) {
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NewLineNode *nl = alloc_node<NewLineNode>();
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nl->line = tokenizer->get_token_line();
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p_block->statements.push_back(nl);
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}
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tokenizer->advance(); // go to next newline
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}
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}
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bool GDScriptParser::_parse_arguments(Node *p_parent, Vector<Node *> &p_args, bool p_static, bool p_can_codecomplete, bool p_parsing_constant) {
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if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
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tokenizer->advance();
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} else {
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parenthesis++;
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int argidx = 0;
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while (true) {
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if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
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_make_completable_call(argidx);
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completion_node = p_parent;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT && tokenizer->get_token_constant().get_type() == Variant::STRING && tokenizer->get_token(1) == GDScriptTokenizer::TK_CURSOR) {
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//completing a string argument..
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completion_cursor = tokenizer->get_token_constant();
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_make_completable_call(argidx);
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completion_node = p_parent;
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tokenizer->advance(1);
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return false;
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}
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Node *arg = _parse_expression(p_parent, p_static, false, p_parsing_constant);
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if (!arg) {
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return false;
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}
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p_args.push_back(arg);
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if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
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tokenizer->advance();
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break;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
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if (tokenizer->get_token(1) == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
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_set_error("Expression expected");
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return false;
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}
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tokenizer->advance();
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argidx++;
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} else {
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// something is broken
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_set_error("Expected ',' or ')'");
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return false;
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}
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}
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parenthesis--;
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}
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return true;
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}
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void GDScriptParser::_make_completable_call(int p_arg) {
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completion_cursor = StringName();
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completion_type = COMPLETION_CALL_ARGUMENTS;
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completion_class = current_class;
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completion_function = current_function;
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completion_line = tokenizer->get_token_line();
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completion_argument = p_arg;
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completion_block = current_block;
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completion_found = true;
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tokenizer->advance();
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}
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bool GDScriptParser::_get_completable_identifier(CompletionType p_type, StringName &identifier) {
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identifier = StringName();
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if (tokenizer->is_token_literal()) {
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identifier = tokenizer->get_token_literal();
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tokenizer->advance();
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}
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if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
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completion_cursor = identifier;
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completion_type = p_type;
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completion_class = current_class;
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completion_function = current_function;
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completion_line = tokenizer->get_token_line();
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completion_block = current_block;
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completion_found = true;
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completion_ident_is_call = false;
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tokenizer->advance();
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if (tokenizer->is_token_literal()) {
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identifier = identifier.operator String() + tokenizer->get_token_literal().operator String();
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tokenizer->advance();
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}
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if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
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completion_ident_is_call = true;
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}
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return true;
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}
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return false;
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}
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GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_static, bool p_allow_assign, bool p_parsing_constant) {
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//Vector<Node*> expressions;
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//Vector<OperatorNode::Operator> operators;
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Vector<Expression> expression;
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Node *expr = nullptr;
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int op_line = tokenizer->get_token_line(); // when operators are created at the bottom, the line might have been changed (\n found)
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while (true) {
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/*****************/
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/* Parse Operand */
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/*****************/
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if (parenthesis > 0) {
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//remove empty space (only allowed if inside parenthesis
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while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
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tokenizer->advance();
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}
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}
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// Check that the next token is not TK_CURSOR and if it is, the offset should be incremented.
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int next_valid_offset = 1;
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if (tokenizer->get_token(next_valid_offset) == GDScriptTokenizer::TK_CURSOR) {
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next_valid_offset++;
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// There is a chunk of the identifier that also needs to be ignored (not always there!)
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if (tokenizer->get_token(next_valid_offset) == GDScriptTokenizer::TK_IDENTIFIER) {
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next_valid_offset++;
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}
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}
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if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
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//subexpression ()
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tokenizer->advance();
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parenthesis++;
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Node *subexpr = _parse_expression(p_parent, p_static, p_allow_assign, p_parsing_constant);
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parenthesis--;
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if (!subexpr) {
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return nullptr;
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}
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if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
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_set_error("Expected ')' in expression");
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return nullptr;
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}
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tokenizer->advance();
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expr = subexpr;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_DOLLAR) {
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tokenizer->advance();
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String path;
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bool need_identifier = true;
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bool done = false;
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int line = tokenizer->get_token_line();
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while (!done) {
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switch (tokenizer->get_token()) {
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case GDScriptTokenizer::TK_CURSOR: {
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completion_type = COMPLETION_GET_NODE;
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completion_class = current_class;
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completion_function = current_function;
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completion_line = tokenizer->get_token_line();
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completion_cursor = path;
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completion_argument = 0;
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completion_block = current_block;
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completion_found = true;
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tokenizer->advance();
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} break;
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case GDScriptTokenizer::TK_CONSTANT: {
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if (!need_identifier) {
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done = true;
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break;
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}
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if (tokenizer->get_token_constant().get_type() != Variant::STRING) {
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_set_error("Expected string constant or identifier after '$' or '/'.");
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return nullptr;
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}
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path += String(tokenizer->get_token_constant());
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tokenizer->advance();
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need_identifier = false;
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} break;
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case GDScriptTokenizer::TK_OP_DIV: {
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if (need_identifier) {
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done = true;
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break;
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}
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path += "/";
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tokenizer->advance();
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need_identifier = true;
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} break;
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default: {
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// Instead of checking for TK_IDENTIFIER, we check with is_token_literal, as this allows us to use match/sync/etc. as a name
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if (need_identifier && tokenizer->is_token_literal()) {
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path += String(tokenizer->get_token_literal());
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tokenizer->advance();
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need_identifier = false;
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} else {
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done = true;
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}
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break;
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}
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}
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}
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if (path == "") {
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_set_error("Path expected after $.");
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return nullptr;
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}
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OperatorNode *op = alloc_node<OperatorNode>();
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op->op = OperatorNode::OP_CALL;
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op->line = line;
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op->arguments.push_back(alloc_node<SelfNode>());
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op->arguments[0]->line = line;
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IdentifierNode *funcname = alloc_node<IdentifierNode>();
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funcname->name = "get_node";
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funcname->line = line;
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op->arguments.push_back(funcname);
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ConstantNode *nodepath = alloc_node<ConstantNode>();
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nodepath->value = NodePath(StringName(path));
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nodepath->datatype = _type_from_variant(nodepath->value);
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nodepath->line = line;
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op->arguments.push_back(nodepath);
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expr = op;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
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tokenizer->advance();
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continue; //no point in cursor in the middle of expression
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT) {
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//constant defined by tokenizer
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ConstantNode *constant = alloc_node<ConstantNode>();
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constant->value = tokenizer->get_token_constant();
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constant->datatype = _type_from_variant(constant->value);
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tokenizer->advance();
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expr = constant;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONST_PI) {
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//constant defined by tokenizer
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ConstantNode *constant = alloc_node<ConstantNode>();
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constant->value = Math_PI;
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constant->datatype = _type_from_variant(constant->value);
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tokenizer->advance();
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expr = constant;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONST_TAU) {
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//constant defined by tokenizer
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ConstantNode *constant = alloc_node<ConstantNode>();
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constant->value = Math_TAU;
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constant->datatype = _type_from_variant(constant->value);
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tokenizer->advance();
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expr = constant;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONST_INF) {
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//constant defined by tokenizer
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ConstantNode *constant = alloc_node<ConstantNode>();
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constant->value = Math_INF;
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constant->datatype = _type_from_variant(constant->value);
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tokenizer->advance();
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expr = constant;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONST_NAN) {
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//constant defined by tokenizer
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ConstantNode *constant = alloc_node<ConstantNode>();
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constant->value = Math_NAN;
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constant->datatype = _type_from_variant(constant->value);
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tokenizer->advance();
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expr = constant;
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} else if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_PRELOAD) {
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//constant defined by tokenizer
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tokenizer->advance();
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if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
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_set_error("Expected '(' after 'preload'");
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return nullptr;
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}
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tokenizer->advance();
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if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
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completion_cursor = StringName();
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completion_node = p_parent;
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completion_type = COMPLETION_RESOURCE_PATH;
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completion_class = current_class;
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completion_function = current_function;
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completion_line = tokenizer->get_token_line();
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completion_block = current_block;
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completion_argument = 0;
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completion_found = true;
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tokenizer->advance();
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}
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String path;
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bool found_constant = false;
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bool valid = false;
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ConstantNode *cn;
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parenthesis++;
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Node *subexpr = _parse_and_reduce_expression(p_parent, p_static);
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parenthesis--;
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if (subexpr) {
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if (subexpr->type == Node::TYPE_CONSTANT) {
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cn = static_cast<ConstantNode *>(subexpr);
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found_constant = true;
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}
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if (subexpr->type == Node::TYPE_IDENTIFIER) {
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IdentifierNode *in = static_cast<IdentifierNode *>(subexpr);
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// Try to find the constant expression by the identifier
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if (current_class->constant_expressions.has(in->name)) {
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Node *cn_exp = current_class->constant_expressions[in->name].expression;
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if (cn_exp->type == Node::TYPE_CONSTANT) {
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cn = static_cast<ConstantNode *>(cn_exp);
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found_constant = true;
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}
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}
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}
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if (found_constant && cn->value.get_type() == Variant::STRING) {
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valid = true;
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path = (String)cn->value;
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}
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}
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if (!valid) {
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_set_error("expected string constant as 'preload' argument.");
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return nullptr;
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}
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if (!path.is_abs_path() && base_path != "") {
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path = base_path.plus_file(path);
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}
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path = path.replace("///", "//").simplify_path();
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if (path == self_path) {
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_set_error("Can't preload itself (use 'get_script()').");
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return nullptr;
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}
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Ref<Resource> res;
|
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dependencies.push_back(path);
|
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if (!dependencies_only) {
|
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if (!validating) {
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//this can be too slow for just validating code
|
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if (for_completion && ScriptCodeCompletionCache::get_singleton() && FileAccess::exists(path)) {
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res = ScriptCodeCompletionCache::get_singleton()->get_cached_resource(path);
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} else if (!for_completion || FileAccess::exists(path)) {
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res = ResourceLoader::load(path);
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}
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} else {
|
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if (!FileAccess::exists(path)) {
|
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_set_error("Can't preload resource at path: " + path);
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return nullptr;
|
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} else if (ScriptCodeCompletionCache::get_singleton()) {
|
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res = ScriptCodeCompletionCache::get_singleton()->get_cached_resource(path);
|
|
}
|
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}
|
|
if (!res.is_valid()) {
|
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_set_error("Can't preload resource at path: " + path);
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected ')' after 'preload' path");
|
|
return nullptr;
|
|
}
|
|
|
|
Ref<GDScript> gds = res;
|
|
if (gds.is_valid() && !gds->is_valid()) {
|
|
_set_error("Couldn't fully preload the script, possible cyclic reference or compilation error. Use \"load()\" instead if a cyclic reference is intended.");
|
|
return nullptr;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
ConstantNode *constant = alloc_node<ConstantNode>();
|
|
constant->value = res;
|
|
constant->datatype = _type_from_variant(constant->value);
|
|
|
|
expr = constant;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_YIELD) {
|
|
if (!current_function) {
|
|
_set_error("\"yield()\" can only be used inside function blocks.");
|
|
return nullptr;
|
|
}
|
|
|
|
current_function->has_yield = true;
|
|
|
|
tokenizer->advance();
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
|
|
_set_error("Expected \"(\" after \"yield\".");
|
|
return nullptr;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
OperatorNode *yield = alloc_node<OperatorNode>();
|
|
yield->op = OperatorNode::OP_YIELD;
|
|
|
|
while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance();
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
expr = yield;
|
|
tokenizer->advance();
|
|
} else {
|
|
parenthesis++;
|
|
|
|
Node *object = _parse_and_reduce_expression(p_parent, p_static);
|
|
if (!object) {
|
|
return nullptr;
|
|
}
|
|
yield->arguments.push_back(object);
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
_set_error("Expected \",\" after the first argument of \"yield\".");
|
|
return nullptr;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
|
|
completion_cursor = StringName();
|
|
completion_node = object;
|
|
completion_type = COMPLETION_YIELD;
|
|
completion_class = current_class;
|
|
completion_function = current_function;
|
|
completion_line = tokenizer->get_token_line();
|
|
completion_argument = 0;
|
|
completion_block = current_block;
|
|
completion_found = true;
|
|
tokenizer->advance();
|
|
}
|
|
|
|
Node *signal = _parse_and_reduce_expression(p_parent, p_static);
|
|
if (!signal) {
|
|
return nullptr;
|
|
}
|
|
yield->arguments.push_back(signal);
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" after the second argument of \"yield\".");
|
|
return nullptr;
|
|
}
|
|
|
|
parenthesis--;
|
|
|
|
tokenizer->advance();
|
|
|
|
expr = yield;
|
|
}
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_SELF) {
|
|
if (p_static) {
|
|
_set_error("\"self\" isn't allowed in a static function or constant expression.");
|
|
return nullptr;
|
|
}
|
|
//constant defined by tokenizer
|
|
SelfNode *self = alloc_node<SelfNode>();
|
|
tokenizer->advance();
|
|
expr = self;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_TYPE && tokenizer->get_token(1) == GDScriptTokenizer::TK_PERIOD) {
|
|
Variant::Type bi_type = tokenizer->get_token_type();
|
|
tokenizer->advance(2);
|
|
|
|
StringName identifier;
|
|
|
|
if (_get_completable_identifier(COMPLETION_BUILT_IN_TYPE_CONSTANT, identifier)) {
|
|
completion_built_in_constant = bi_type;
|
|
}
|
|
|
|
if (identifier == StringName()) {
|
|
_set_error("Built-in type constant or static function expected after \".\".");
|
|
return nullptr;
|
|
}
|
|
if (!Variant::has_constant(bi_type, identifier)) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_OPEN &&
|
|
Variant::is_method_const(bi_type, identifier) &&
|
|
Variant::get_method_return_type(bi_type, identifier) == bi_type) {
|
|
tokenizer->advance();
|
|
|
|
OperatorNode *construct = alloc_node<OperatorNode>();
|
|
construct->op = OperatorNode::OP_CALL;
|
|
|
|
TypeNode *tn = alloc_node<TypeNode>();
|
|
tn->vtype = bi_type;
|
|
construct->arguments.push_back(tn);
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_CALL;
|
|
op->arguments.push_back(construct);
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = identifier;
|
|
op->arguments.push_back(id);
|
|
|
|
if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) {
|
|
return nullptr;
|
|
}
|
|
|
|
expr = op;
|
|
} else {
|
|
// Object is a special case
|
|
bool valid = false;
|
|
if (bi_type == Variant::OBJECT) {
|
|
int object_constant = ClassDB::get_integer_constant("Object", identifier, &valid);
|
|
if (valid) {
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
cn->value = object_constant;
|
|
cn->datatype = _type_from_variant(cn->value);
|
|
expr = cn;
|
|
}
|
|
}
|
|
if (!valid) {
|
|
_set_error("Static constant '" + identifier.operator String() + "' not present in built-in type " + Variant::get_type_name(bi_type) + ".");
|
|
return nullptr;
|
|
}
|
|
}
|
|
} else {
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
cn->value = Variant::get_constant_value(bi_type, identifier);
|
|
cn->datatype = _type_from_variant(cn->value);
|
|
expr = cn;
|
|
}
|
|
|
|
} else if (tokenizer->get_token(next_valid_offset) == GDScriptTokenizer::TK_PARENTHESIS_OPEN && tokenizer->is_token_literal()) {
|
|
// We check with is_token_literal, as this allows us to use match/sync/etc. as a name
|
|
//function or constructor
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_CALL;
|
|
|
|
//Do a quick Array and Dictionary Check. Replace if either require no arguments.
|
|
bool replaced = false;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_TYPE) {
|
|
Variant::Type ct = tokenizer->get_token_type();
|
|
if (!p_parsing_constant) {
|
|
if (ct == Variant::ARRAY) {
|
|
if (tokenizer->get_token(2) == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
ArrayNode *arr = alloc_node<ArrayNode>();
|
|
expr = arr;
|
|
replaced = true;
|
|
tokenizer->advance(3);
|
|
}
|
|
}
|
|
if (ct == Variant::DICTIONARY) {
|
|
if (tokenizer->get_token(2) == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
DictionaryNode *dict = alloc_node<DictionaryNode>();
|
|
expr = dict;
|
|
replaced = true;
|
|
tokenizer->advance(3);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!replaced) {
|
|
TypeNode *tn = alloc_node<TypeNode>();
|
|
tn->vtype = tokenizer->get_token_type();
|
|
op->arguments.push_back(tn);
|
|
tokenizer->advance(2);
|
|
}
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_FUNC) {
|
|
BuiltInFunctionNode *bn = alloc_node<BuiltInFunctionNode>();
|
|
bn->function = tokenizer->get_token_built_in_func();
|
|
op->arguments.push_back(bn);
|
|
tokenizer->advance(2);
|
|
} else {
|
|
SelfNode *self = alloc_node<SelfNode>();
|
|
op->arguments.push_back(self);
|
|
|
|
StringName identifier;
|
|
if (_get_completable_identifier(COMPLETION_FUNCTION, identifier)) {
|
|
}
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = identifier;
|
|
op->arguments.push_back(id);
|
|
tokenizer->advance(1);
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
|
|
_make_completable_call(0);
|
|
completion_node = op;
|
|
}
|
|
if (!replaced) {
|
|
if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) {
|
|
return nullptr;
|
|
}
|
|
expr = op;
|
|
}
|
|
} else if (tokenizer->is_token_literal(0, true)) {
|
|
// We check with is_token_literal, as this allows us to use match/sync/etc. as a name
|
|
//identifier (reference)
|
|
|
|
const ClassNode *cln = current_class;
|
|
bool bfn = false;
|
|
StringName identifier;
|
|
int id_line = tokenizer->get_token_line();
|
|
if (_get_completable_identifier(COMPLETION_IDENTIFIER, identifier)) {
|
|
}
|
|
|
|
BlockNode *b = current_block;
|
|
while (!bfn && b) {
|
|
if (b->variables.has(identifier)) {
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = identifier;
|
|
id->declared_block = b;
|
|
id->line = id_line;
|
|
expr = id;
|
|
bfn = true;
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
LocalVarNode *lv = b->variables[identifier];
|
|
switch (tokenizer->get_token()) {
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_ADD:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_AND:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_OR:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_XOR:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_DIV:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_MOD:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_MUL:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_LEFT:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_RIGHT:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SUB: {
|
|
if (lv->assignments == 0) {
|
|
if (!lv->datatype.has_type) {
|
|
_set_error("Using assignment with operation on a variable that was never assigned.");
|
|
return nullptr;
|
|
}
|
|
_add_warning(GDScriptWarning::UNASSIGNED_VARIABLE_OP_ASSIGN, -1, identifier.operator String());
|
|
}
|
|
FALLTHROUGH;
|
|
}
|
|
case GDScriptTokenizer::TK_OP_ASSIGN: {
|
|
lv->assignments += 1;
|
|
lv->usages--; // Assignment is not really usage
|
|
} break;
|
|
default: {
|
|
lv->usages++;
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
break;
|
|
}
|
|
b = b->parent_block;
|
|
}
|
|
|
|
if (!bfn && p_parsing_constant) {
|
|
if (cln->constant_expressions.has(identifier)) {
|
|
expr = cln->constant_expressions[identifier].expression;
|
|
bfn = true;
|
|
} else if (GDScriptLanguage::get_singleton()->get_global_map().has(identifier)) {
|
|
//check from constants
|
|
ConstantNode *constant = alloc_node<ConstantNode>();
|
|
constant->value = GDScriptLanguage::get_singleton()->get_global_array()[GDScriptLanguage::get_singleton()->get_global_map()[identifier]];
|
|
constant->datatype = _type_from_variant(constant->value);
|
|
constant->line = id_line;
|
|
expr = constant;
|
|
bfn = true;
|
|
}
|
|
|
|
if (!bfn && GDScriptLanguage::get_singleton()->get_named_globals_map().has(identifier)) {
|
|
//check from singletons
|
|
ConstantNode *constant = alloc_node<ConstantNode>();
|
|
constant->value = GDScriptLanguage::get_singleton()->get_named_globals_map()[identifier];
|
|
expr = constant;
|
|
bfn = true;
|
|
}
|
|
|
|
if (!dependencies_only) {
|
|
if (!bfn && ScriptServer::is_global_class(identifier)) {
|
|
Ref<Script> scr = ResourceLoader::load(ScriptServer::get_global_class_path(identifier));
|
|
if (scr.is_valid() && scr->is_valid()) {
|
|
ConstantNode *constant = alloc_node<ConstantNode>();
|
|
constant->value = scr;
|
|
expr = constant;
|
|
bfn = true;
|
|
}
|
|
}
|
|
|
|
// Check parents for the constant
|
|
if (!bfn) {
|
|
// Using current_class instead of cln here, since cln is const*
|
|
_determine_inheritance(current_class, false);
|
|
if (cln->base_type.has_type && cln->base_type.kind == DataType::GDSCRIPT && cln->base_type.script_type->is_valid()) {
|
|
Map<StringName, Variant> parent_constants;
|
|
current_class->base_type.script_type->get_constants(&parent_constants);
|
|
if (parent_constants.has(identifier)) {
|
|
ConstantNode *constant = alloc_node<ConstantNode>();
|
|
constant->value = parent_constants[identifier];
|
|
expr = constant;
|
|
bfn = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!bfn) {
|
|
#ifdef DEBUG_ENABLED
|
|
if (current_function) {
|
|
int arg_idx = current_function->arguments.find(identifier);
|
|
if (arg_idx != -1) {
|
|
switch (tokenizer->get_token()) {
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_ADD:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_AND:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_OR:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_XOR:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_DIV:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_MOD:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_MUL:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_LEFT:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_RIGHT:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SUB:
|
|
case GDScriptTokenizer::TK_OP_ASSIGN: {
|
|
// Assignment is not really usage
|
|
} break;
|
|
default: {
|
|
current_function->arguments_usage.write[arg_idx] = current_function->arguments_usage[arg_idx] + 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = identifier;
|
|
id->line = id_line;
|
|
expr = id;
|
|
}
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_ADD || tokenizer->get_token() == GDScriptTokenizer::TK_OP_SUB || tokenizer->get_token() == GDScriptTokenizer::TK_OP_NOT || tokenizer->get_token() == GDScriptTokenizer::TK_OP_BIT_INVERT) {
|
|
//single prefix operators like !expr +expr -expr ++expr --expr
|
|
alloc_node<OperatorNode>();
|
|
Expression e;
|
|
e.is_op = true;
|
|
|
|
switch (tokenizer->get_token()) {
|
|
case GDScriptTokenizer::TK_OP_ADD:
|
|
e.op = OperatorNode::OP_POS;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_SUB:
|
|
e.op = OperatorNode::OP_NEG;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_NOT:
|
|
e.op = OperatorNode::OP_NOT;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_BIT_INVERT:
|
|
e.op = OperatorNode::OP_BIT_INVERT;
|
|
break;
|
|
default: {
|
|
}
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
if (e.op != OperatorNode::OP_NOT && tokenizer->get_token() == GDScriptTokenizer::TK_OP_NOT) {
|
|
_set_error("Misplaced 'not'.");
|
|
return nullptr;
|
|
}
|
|
|
|
expression.push_back(e);
|
|
continue; //only exception, must continue...
|
|
|
|
/*
|
|
Node *subexpr=_parse_expression(op,p_static);
|
|
if (!subexpr)
|
|
return NULL;
|
|
op->arguments.push_back(subexpr);
|
|
expr=op;*/
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_IS && tokenizer->get_token(1) == GDScriptTokenizer::TK_BUILT_IN_TYPE) {
|
|
// 'is' operator with built-in type
|
|
if (!expr) {
|
|
_set_error("Expected identifier before 'is' operator");
|
|
return nullptr;
|
|
}
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_IS_BUILTIN;
|
|
op->arguments.push_back(expr);
|
|
|
|
tokenizer->advance();
|
|
|
|
TypeNode *tn = alloc_node<TypeNode>();
|
|
tn->vtype = tokenizer->get_token_type();
|
|
op->arguments.push_back(tn);
|
|
tokenizer->advance();
|
|
|
|
expr = op;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_BRACKET_OPEN) {
|
|
// array
|
|
tokenizer->advance();
|
|
|
|
ArrayNode *arr = alloc_node<ArrayNode>();
|
|
bool expecting_comma = false;
|
|
|
|
while (true) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_EOF) {
|
|
_set_error("Unterminated array");
|
|
return nullptr;
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_BRACKET_CLOSE) {
|
|
tokenizer->advance();
|
|
break;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance(); //ignore newline
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
if (!expecting_comma) {
|
|
_set_error("expression or ']' expected");
|
|
return nullptr;
|
|
}
|
|
|
|
expecting_comma = false;
|
|
tokenizer->advance(); //ignore newline
|
|
} else {
|
|
//parse expression
|
|
if (expecting_comma) {
|
|
_set_error("',' or ']' expected");
|
|
return nullptr;
|
|
}
|
|
Node *n = _parse_expression(arr, p_static, p_allow_assign, p_parsing_constant);
|
|
if (!n) {
|
|
return nullptr;
|
|
}
|
|
arr->elements.push_back(n);
|
|
expecting_comma = true;
|
|
}
|
|
}
|
|
|
|
expr = arr;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_OPEN) {
|
|
// array
|
|
tokenizer->advance();
|
|
|
|
DictionaryNode *dict = alloc_node<DictionaryNode>();
|
|
|
|
enum DictExpect {
|
|
|
|
DICT_EXPECT_KEY,
|
|
DICT_EXPECT_COLON,
|
|
DICT_EXPECT_VALUE,
|
|
DICT_EXPECT_COMMA
|
|
|
|
};
|
|
|
|
Node *key = nullptr;
|
|
Set<Variant> keys;
|
|
|
|
DictExpect expecting = DICT_EXPECT_KEY;
|
|
|
|
while (true) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_EOF) {
|
|
_set_error("Unterminated dictionary");
|
|
return nullptr;
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) {
|
|
if (expecting == DICT_EXPECT_COLON) {
|
|
_set_error("':' expected");
|
|
return nullptr;
|
|
}
|
|
if (expecting == DICT_EXPECT_VALUE) {
|
|
_set_error("value expected");
|
|
return nullptr;
|
|
}
|
|
tokenizer->advance();
|
|
break;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance(); //ignore newline
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
if (expecting == DICT_EXPECT_KEY) {
|
|
_set_error("key or '}' expected");
|
|
return nullptr;
|
|
}
|
|
if (expecting == DICT_EXPECT_VALUE) {
|
|
_set_error("value expected");
|
|
return nullptr;
|
|
}
|
|
if (expecting == DICT_EXPECT_COLON) {
|
|
_set_error("':' expected");
|
|
return nullptr;
|
|
}
|
|
|
|
expecting = DICT_EXPECT_KEY;
|
|
tokenizer->advance(); //ignore newline
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) {
|
|
if (expecting == DICT_EXPECT_KEY) {
|
|
_set_error("key or '}' expected");
|
|
return nullptr;
|
|
}
|
|
if (expecting == DICT_EXPECT_VALUE) {
|
|
_set_error("value expected");
|
|
return nullptr;
|
|
}
|
|
if (expecting == DICT_EXPECT_COMMA) {
|
|
_set_error("',' or '}' expected");
|
|
return nullptr;
|
|
}
|
|
|
|
expecting = DICT_EXPECT_VALUE;
|
|
tokenizer->advance(); //ignore newline
|
|
} else {
|
|
if (expecting == DICT_EXPECT_COMMA) {
|
|
_set_error("',' or '}' expected");
|
|
return nullptr;
|
|
}
|
|
if (expecting == DICT_EXPECT_COLON) {
|
|
_set_error("':' expected");
|
|
return nullptr;
|
|
}
|
|
|
|
if (expecting == DICT_EXPECT_KEY) {
|
|
if (tokenizer->is_token_literal() && tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
// We check with is_token_literal, as this allows us to use match/sync/etc. as a name
|
|
//lua style identifier, easier to write
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
cn->value = tokenizer->get_token_literal();
|
|
cn->datatype = _type_from_variant(cn->value);
|
|
key = cn;
|
|
tokenizer->advance(2);
|
|
expecting = DICT_EXPECT_VALUE;
|
|
} else {
|
|
//python/js style more flexible
|
|
key = _parse_expression(dict, p_static, p_allow_assign, p_parsing_constant);
|
|
if (!key) {
|
|
return nullptr;
|
|
}
|
|
expecting = DICT_EXPECT_COLON;
|
|
}
|
|
}
|
|
|
|
if (expecting == DICT_EXPECT_VALUE) {
|
|
Node *value = _parse_expression(dict, p_static, p_allow_assign, p_parsing_constant);
|
|
if (!value) {
|
|
return nullptr;
|
|
}
|
|
expecting = DICT_EXPECT_COMMA;
|
|
|
|
if (key->type == GDScriptParser::Node::TYPE_CONSTANT) {
|
|
Variant const &keyName = static_cast<const GDScriptParser::ConstantNode *>(key)->value;
|
|
|
|
if (keys.has(keyName)) {
|
|
_set_error("Duplicate key found in Dictionary literal");
|
|
return nullptr;
|
|
}
|
|
keys.insert(keyName);
|
|
}
|
|
|
|
DictionaryNode::Pair pair;
|
|
pair.key = key;
|
|
pair.value = value;
|
|
dict->elements.push_back(pair);
|
|
key = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
expr = dict;
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_PERIOD && (tokenizer->is_token_literal(1) || tokenizer->get_token(1) == GDScriptTokenizer::TK_CURSOR)) {
|
|
// We check with is_token_literal, as this allows us to use match/sync/etc. as a name
|
|
// parent call
|
|
|
|
tokenizer->advance(); //goto identifier
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_PARENT_CALL;
|
|
|
|
/*SelfNode *self = alloc_node<SelfNode>();
|
|
op->arguments.push_back(self);
|
|
forbidden for now */
|
|
StringName identifier;
|
|
bool is_completion = _get_completable_identifier(COMPLETION_PARENT_FUNCTION, identifier) && for_completion;
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = identifier;
|
|
op->arguments.push_back(id);
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
|
|
if (!is_completion) {
|
|
_set_error("Expected '(' for parent function call.");
|
|
return nullptr;
|
|
}
|
|
} else {
|
|
tokenizer->advance();
|
|
if (!_parse_arguments(op, op->arguments, p_static, false, p_parsing_constant)) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
expr = op;
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_TYPE && expression.size() > 0 && expression[expression.size() - 1].is_op && expression[expression.size() - 1].op == OperatorNode::OP_IS) {
|
|
Expression e = expression[expression.size() - 1];
|
|
e.op = OperatorNode::OP_IS_BUILTIN;
|
|
expression.write[expression.size() - 1] = e;
|
|
|
|
TypeNode *tn = alloc_node<TypeNode>();
|
|
tn->vtype = tokenizer->get_token_type();
|
|
expr = tn;
|
|
tokenizer->advance();
|
|
} else {
|
|
//find list [ or find dictionary {
|
|
_set_error("Error parsing expression, misplaced: " + String(tokenizer->get_token_name(tokenizer->get_token())));
|
|
return nullptr; //nothing
|
|
}
|
|
|
|
ERR_FAIL_COND_V_MSG(!expr, nullptr, "GDScriptParser bug, couldn't figure out what expression is.");
|
|
|
|
/******************/
|
|
/* Parse Indexing */
|
|
/******************/
|
|
|
|
while (true) {
|
|
//expressions can be indexed any number of times
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PERIOD) {
|
|
//indexing using "."
|
|
|
|
if (tokenizer->get_token(1) != GDScriptTokenizer::TK_CURSOR && !tokenizer->is_token_literal(1)) {
|
|
// We check with is_token_literal, as this allows us to use match/sync/etc. as a name
|
|
_set_error("Expected identifier as member");
|
|
return nullptr;
|
|
} else if (tokenizer->get_token(2) == GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
|
|
//call!!
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_CALL;
|
|
|
|
tokenizer->advance();
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
StringName identifier;
|
|
if (_get_completable_identifier(COMPLETION_METHOD, identifier)) {
|
|
completion_node = op;
|
|
//indexing stuff
|
|
}
|
|
|
|
id->name = identifier;
|
|
|
|
op->arguments.push_back(expr); // call what
|
|
op->arguments.push_back(id); // call func
|
|
//get arguments
|
|
tokenizer->advance(1);
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
|
|
_make_completable_call(0);
|
|
completion_node = op;
|
|
}
|
|
if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) {
|
|
return nullptr;
|
|
}
|
|
expr = op;
|
|
|
|
} else {
|
|
//simple indexing!
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_INDEX_NAMED;
|
|
tokenizer->advance();
|
|
|
|
StringName identifier;
|
|
if (_get_completable_identifier(COMPLETION_INDEX, identifier)) {
|
|
if (identifier == StringName()) {
|
|
identifier = "@temp"; //so it parses alright
|
|
}
|
|
completion_node = op;
|
|
|
|
//indexing stuff
|
|
}
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = identifier;
|
|
|
|
op->arguments.push_back(expr);
|
|
op->arguments.push_back(id);
|
|
|
|
expr = op;
|
|
}
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_BRACKET_OPEN) {
|
|
//indexing using "[]"
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_INDEX;
|
|
|
|
tokenizer->advance(1);
|
|
|
|
parenthesis++;
|
|
Node *subexpr = _parse_expression(op, p_static, p_allow_assign, p_parsing_constant);
|
|
parenthesis--;
|
|
if (!subexpr) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_BRACKET_CLOSE) {
|
|
_set_error("Expected ']'");
|
|
return nullptr;
|
|
}
|
|
|
|
op->arguments.push_back(expr);
|
|
op->arguments.push_back(subexpr);
|
|
tokenizer->advance(1);
|
|
expr = op;
|
|
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*****************/
|
|
/* Parse Casting */
|
|
/*****************/
|
|
|
|
bool has_casting = expr->type == Node::TYPE_CAST;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_AS) {
|
|
if (has_casting) {
|
|
_set_error("Unexpected 'as'.");
|
|
return nullptr;
|
|
}
|
|
CastNode *cn = alloc_node<CastNode>();
|
|
if (!_parse_type(cn->cast_type)) {
|
|
_set_error("Expected type after 'as'.");
|
|
return nullptr;
|
|
}
|
|
has_casting = true;
|
|
cn->source_node = expr;
|
|
expr = cn;
|
|
}
|
|
|
|
/******************/
|
|
/* Parse Operator */
|
|
/******************/
|
|
|
|
if (parenthesis > 0) {
|
|
//remove empty space (only allowed if inside parenthesis
|
|
while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance();
|
|
}
|
|
}
|
|
|
|
Expression e;
|
|
e.is_op = false;
|
|
e.node = expr;
|
|
expression.push_back(e);
|
|
|
|
// determine which operator is next
|
|
|
|
OperatorNode::Operator op;
|
|
bool valid = true;
|
|
|
|
//assign, if allowed is only allowed on the first operator
|
|
#define _VALIDATE_ASSIGN \
|
|
if (!p_allow_assign || has_casting) { \
|
|
_set_error("Unexpected assign."); \
|
|
return NULL; \
|
|
} \
|
|
p_allow_assign = false;
|
|
|
|
switch (tokenizer->get_token()) { //see operator
|
|
|
|
case GDScriptTokenizer::TK_OP_IN:
|
|
op = OperatorNode::OP_IN;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_EQUAL:
|
|
op = OperatorNode::OP_EQUAL;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_NOT_EQUAL:
|
|
op = OperatorNode::OP_NOT_EQUAL;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_LESS:
|
|
op = OperatorNode::OP_LESS;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_LESS_EQUAL:
|
|
op = OperatorNode::OP_LESS_EQUAL;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_GREATER:
|
|
op = OperatorNode::OP_GREATER;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_GREATER_EQUAL:
|
|
op = OperatorNode::OP_GREATER_EQUAL;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_AND:
|
|
op = OperatorNode::OP_AND;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_OR:
|
|
op = OperatorNode::OP_OR;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ADD:
|
|
op = OperatorNode::OP_ADD;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_SUB:
|
|
op = OperatorNode::OP_SUB;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_MUL:
|
|
op = OperatorNode::OP_MUL;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_DIV:
|
|
op = OperatorNode::OP_DIV;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_MOD:
|
|
op = OperatorNode::OP_MOD;
|
|
break;
|
|
//case GDScriptTokenizer::TK_OP_NEG: op=OperatorNode::OP_NEG ; break;
|
|
case GDScriptTokenizer::TK_OP_SHIFT_LEFT:
|
|
op = OperatorNode::OP_SHIFT_LEFT;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_SHIFT_RIGHT:
|
|
op = OperatorNode::OP_SHIFT_RIGHT;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN: {
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN;
|
|
|
|
if (tokenizer->get_token(1) == GDScriptTokenizer::TK_CURSOR) {
|
|
//code complete assignment
|
|
completion_type = COMPLETION_ASSIGN;
|
|
completion_node = expr;
|
|
completion_class = current_class;
|
|
completion_function = current_function;
|
|
completion_line = tokenizer->get_token_line();
|
|
completion_block = current_block;
|
|
completion_found = true;
|
|
tokenizer->advance();
|
|
}
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_ADD:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_ADD;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SUB:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SUB;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_MUL:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_MUL;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_DIV:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_DIV;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_MOD:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_MOD;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_LEFT:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SHIFT_LEFT;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_RIGHT:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SHIFT_RIGHT;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_AND:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_AND;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_OR:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_OR;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_ASSIGN_BIT_XOR:
|
|
_VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_XOR;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_BIT_AND:
|
|
op = OperatorNode::OP_BIT_AND;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_BIT_OR:
|
|
op = OperatorNode::OP_BIT_OR;
|
|
break;
|
|
case GDScriptTokenizer::TK_OP_BIT_XOR:
|
|
op = OperatorNode::OP_BIT_XOR;
|
|
break;
|
|
case GDScriptTokenizer::TK_PR_IS:
|
|
op = OperatorNode::OP_IS;
|
|
break;
|
|
case GDScriptTokenizer::TK_CF_IF:
|
|
op = OperatorNode::OP_TERNARY_IF;
|
|
break;
|
|
case GDScriptTokenizer::TK_CF_ELSE:
|
|
op = OperatorNode::OP_TERNARY_ELSE;
|
|
break;
|
|
default:
|
|
valid = false;
|
|
break;
|
|
}
|
|
|
|
if (valid) {
|
|
e.is_op = true;
|
|
e.op = op;
|
|
expression.push_back(e);
|
|
tokenizer->advance();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Reduce the set set of expressions and place them in an operator tree, respecting precedence */
|
|
|
|
while (expression.size() > 1) {
|
|
int next_op = -1;
|
|
int min_priority = 0xFFFFF;
|
|
bool is_unary = false;
|
|
bool is_ternary = false;
|
|
|
|
for (int i = 0; i < expression.size(); i++) {
|
|
if (!expression[i].is_op) {
|
|
continue;
|
|
}
|
|
|
|
int priority;
|
|
|
|
bool unary = false;
|
|
bool ternary = false;
|
|
bool error = false;
|
|
bool right_to_left = false;
|
|
|
|
switch (expression[i].op) {
|
|
case OperatorNode::OP_IS:
|
|
case OperatorNode::OP_IS_BUILTIN:
|
|
priority = -1;
|
|
break; //before anything
|
|
|
|
case OperatorNode::OP_BIT_INVERT:
|
|
priority = 0;
|
|
unary = true;
|
|
break;
|
|
case OperatorNode::OP_NEG:
|
|
case OperatorNode::OP_POS:
|
|
priority = 1;
|
|
unary = true;
|
|
break;
|
|
|
|
case OperatorNode::OP_MUL:
|
|
priority = 2;
|
|
break;
|
|
case OperatorNode::OP_DIV:
|
|
priority = 2;
|
|
break;
|
|
case OperatorNode::OP_MOD:
|
|
priority = 2;
|
|
break;
|
|
|
|
case OperatorNode::OP_ADD:
|
|
priority = 3;
|
|
break;
|
|
case OperatorNode::OP_SUB:
|
|
priority = 3;
|
|
break;
|
|
|
|
case OperatorNode::OP_SHIFT_LEFT:
|
|
priority = 4;
|
|
break;
|
|
case OperatorNode::OP_SHIFT_RIGHT:
|
|
priority = 4;
|
|
break;
|
|
|
|
case OperatorNode::OP_BIT_AND:
|
|
priority = 5;
|
|
break;
|
|
case OperatorNode::OP_BIT_XOR:
|
|
priority = 6;
|
|
break;
|
|
case OperatorNode::OP_BIT_OR:
|
|
priority = 7;
|
|
break;
|
|
|
|
case OperatorNode::OP_LESS:
|
|
priority = 8;
|
|
break;
|
|
case OperatorNode::OP_LESS_EQUAL:
|
|
priority = 8;
|
|
break;
|
|
case OperatorNode::OP_GREATER:
|
|
priority = 8;
|
|
break;
|
|
case OperatorNode::OP_GREATER_EQUAL:
|
|
priority = 8;
|
|
break;
|
|
|
|
case OperatorNode::OP_EQUAL:
|
|
priority = 8;
|
|
break;
|
|
case OperatorNode::OP_NOT_EQUAL:
|
|
priority = 8;
|
|
break;
|
|
|
|
case OperatorNode::OP_IN:
|
|
priority = 10;
|
|
break;
|
|
|
|
case OperatorNode::OP_NOT:
|
|
priority = 11;
|
|
unary = true;
|
|
break;
|
|
case OperatorNode::OP_AND:
|
|
priority = 12;
|
|
break;
|
|
case OperatorNode::OP_OR:
|
|
priority = 13;
|
|
break;
|
|
|
|
case OperatorNode::OP_TERNARY_IF:
|
|
priority = 14;
|
|
ternary = true;
|
|
right_to_left = true;
|
|
break;
|
|
case OperatorNode::OP_TERNARY_ELSE:
|
|
priority = 14;
|
|
error = true;
|
|
// Rigth-to-left should be false in this case, otherwise it would always error.
|
|
break;
|
|
|
|
case OperatorNode::OP_ASSIGN:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_ADD:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_SUB:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_MUL:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_DIV:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_MOD:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_SHIFT_LEFT:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_SHIFT_RIGHT:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_BIT_AND:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_BIT_OR:
|
|
priority = 15;
|
|
break;
|
|
case OperatorNode::OP_ASSIGN_BIT_XOR:
|
|
priority = 15;
|
|
break;
|
|
|
|
default: {
|
|
_set_error("GDScriptParser bug, invalid operator in expression: " + itos(expression[i].op));
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
if (priority < min_priority || (right_to_left && priority == min_priority)) {
|
|
// < is used for left to right (default)
|
|
// <= is used for right to left
|
|
if (error) {
|
|
_set_error("Unexpected operator");
|
|
return nullptr;
|
|
}
|
|
next_op = i;
|
|
min_priority = priority;
|
|
is_unary = unary;
|
|
is_ternary = ternary;
|
|
}
|
|
}
|
|
|
|
if (next_op == -1) {
|
|
_set_error("Yet another parser bug....");
|
|
ERR_FAIL_V(nullptr);
|
|
}
|
|
|
|
// OK! create operator..
|
|
if (is_unary) {
|
|
int expr_pos = next_op;
|
|
while (expression[expr_pos].is_op) {
|
|
expr_pos++;
|
|
if (expr_pos == expression.size()) {
|
|
//can happen..
|
|
_set_error("Unexpected end of expression...");
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
//consecutively do unary operators
|
|
for (int i = expr_pos - 1; i >= next_op; i--) {
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = expression[i].op;
|
|
op->arguments.push_back(expression[i + 1].node);
|
|
op->line = op_line; //line might have been changed from a \n
|
|
expression.write[i].is_op = false;
|
|
expression.write[i].node = op;
|
|
expression.remove(i + 1);
|
|
}
|
|
|
|
} else if (is_ternary) {
|
|
if (next_op < 1 || next_op >= (expression.size() - 1)) {
|
|
_set_error("Parser bug...");
|
|
ERR_FAIL_V(nullptr);
|
|
}
|
|
|
|
if (next_op >= (expression.size() - 2) || expression[next_op + 2].op != OperatorNode::OP_TERNARY_ELSE) {
|
|
_set_error("Expected else after ternary if.");
|
|
return nullptr;
|
|
}
|
|
if (next_op >= (expression.size() - 3)) {
|
|
_set_error("Expected value after ternary else.");
|
|
return nullptr;
|
|
}
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = expression[next_op].op;
|
|
op->line = op_line; //line might have been changed from a \n
|
|
|
|
if (expression[next_op - 1].is_op) {
|
|
_set_error("Parser bug...");
|
|
ERR_FAIL_V(nullptr);
|
|
}
|
|
|
|
if (expression[next_op + 1].is_op) {
|
|
// this is not invalid and can really appear
|
|
// but it becomes invalid anyway because no binary op
|
|
// can be followed by a unary op in a valid combination,
|
|
// due to how precedence works, unaries will always disappear first
|
|
|
|
_set_error("Unexpected two consecutive operators after ternary if.");
|
|
return nullptr;
|
|
}
|
|
|
|
if (expression[next_op + 3].is_op) {
|
|
// this is not invalid and can really appear
|
|
// but it becomes invalid anyway because no binary op
|
|
// can be followed by a unary op in a valid combination,
|
|
// due to how precedence works, unaries will always disappear first
|
|
|
|
_set_error("Unexpected two consecutive operators after ternary else.");
|
|
return nullptr;
|
|
}
|
|
|
|
op->arguments.push_back(expression[next_op + 1].node); //next expression goes as first
|
|
op->arguments.push_back(expression[next_op - 1].node); //left expression goes as when-true
|
|
op->arguments.push_back(expression[next_op + 3].node); //expression after next goes as when-false
|
|
|
|
//replace all 3 nodes by this operator and make it an expression
|
|
expression.write[next_op - 1].node = op;
|
|
expression.remove(next_op);
|
|
expression.remove(next_op);
|
|
expression.remove(next_op);
|
|
expression.remove(next_op);
|
|
} else {
|
|
if (next_op < 1 || next_op >= (expression.size() - 1)) {
|
|
_set_error("Parser bug...");
|
|
ERR_FAIL_V(nullptr);
|
|
}
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = expression[next_op].op;
|
|
op->line = op_line; //line might have been changed from a \n
|
|
|
|
if (expression[next_op - 1].is_op) {
|
|
_set_error("Parser bug...");
|
|
ERR_FAIL_V(nullptr);
|
|
}
|
|
|
|
if (expression[next_op + 1].is_op) {
|
|
// this is not invalid and can really appear
|
|
// but it becomes invalid anyway because no binary op
|
|
// can be followed by a unary op in a valid combination,
|
|
// due to how precedence works, unaries will always disappear first
|
|
|
|
_set_error("Unexpected two consecutive operators.");
|
|
return nullptr;
|
|
}
|
|
|
|
op->arguments.push_back(expression[next_op - 1].node); //expression goes as left
|
|
op->arguments.push_back(expression[next_op + 1].node); //next expression goes as right
|
|
|
|
//replace all 3 nodes by this operator and make it an expression
|
|
expression.write[next_op - 1].node = op;
|
|
expression.remove(next_op);
|
|
expression.remove(next_op);
|
|
}
|
|
}
|
|
|
|
return expression[0].node;
|
|
}
|
|
|
|
GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to_const) {
|
|
switch (p_node->type) {
|
|
case Node::TYPE_BUILT_IN_FUNCTION: {
|
|
//many may probably be optimizable
|
|
return p_node;
|
|
} break;
|
|
case Node::TYPE_ARRAY: {
|
|
ArrayNode *an = static_cast<ArrayNode *>(p_node);
|
|
bool all_constants = true;
|
|
|
|
for (int i = 0; i < an->elements.size(); i++) {
|
|
an->elements.write[i] = _reduce_expression(an->elements[i], p_to_const);
|
|
if (an->elements[i]->type != Node::TYPE_CONSTANT) {
|
|
all_constants = false;
|
|
}
|
|
}
|
|
|
|
if (all_constants && p_to_const) {
|
|
//reduce constant array expression
|
|
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
Array arr;
|
|
arr.resize(an->elements.size());
|
|
for (int i = 0; i < an->elements.size(); i++) {
|
|
ConstantNode *acn = static_cast<ConstantNode *>(an->elements[i]);
|
|
arr[i] = acn->value;
|
|
}
|
|
cn->value = arr;
|
|
cn->datatype = _type_from_variant(cn->value);
|
|
return cn;
|
|
}
|
|
|
|
return an;
|
|
|
|
} break;
|
|
case Node::TYPE_DICTIONARY: {
|
|
DictionaryNode *dn = static_cast<DictionaryNode *>(p_node);
|
|
bool all_constants = true;
|
|
|
|
for (int i = 0; i < dn->elements.size(); i++) {
|
|
dn->elements.write[i].key = _reduce_expression(dn->elements[i].key, p_to_const);
|
|
if (dn->elements[i].key->type != Node::TYPE_CONSTANT) {
|
|
all_constants = false;
|
|
}
|
|
dn->elements.write[i].value = _reduce_expression(dn->elements[i].value, p_to_const);
|
|
if (dn->elements[i].value->type != Node::TYPE_CONSTANT) {
|
|
all_constants = false;
|
|
}
|
|
}
|
|
|
|
if (all_constants && p_to_const) {
|
|
//reduce constant array expression
|
|
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
Dictionary dict;
|
|
for (int i = 0; i < dn->elements.size(); i++) {
|
|
ConstantNode *key_c = static_cast<ConstantNode *>(dn->elements[i].key);
|
|
ConstantNode *value_c = static_cast<ConstantNode *>(dn->elements[i].value);
|
|
|
|
dict[key_c->value] = value_c->value;
|
|
}
|
|
cn->value = dict;
|
|
cn->datatype = _type_from_variant(cn->value);
|
|
return cn;
|
|
}
|
|
|
|
return dn;
|
|
|
|
} break;
|
|
case Node::TYPE_OPERATOR: {
|
|
OperatorNode *op = static_cast<OperatorNode *>(p_node);
|
|
|
|
bool all_constants = true;
|
|
int last_not_constant = -1;
|
|
|
|
for (int i = 0; i < op->arguments.size(); i++) {
|
|
op->arguments.write[i] = _reduce_expression(op->arguments[i], p_to_const);
|
|
if (op->arguments[i]->type != Node::TYPE_CONSTANT) {
|
|
all_constants = false;
|
|
last_not_constant = i;
|
|
}
|
|
}
|
|
|
|
if (op->op == OperatorNode::OP_IS) {
|
|
//nothing much
|
|
return op;
|
|
}
|
|
if (op->op == OperatorNode::OP_PARENT_CALL) {
|
|
//nothing much
|
|
return op;
|
|
|
|
} else if (op->op == OperatorNode::OP_CALL) {
|
|
//can reduce base type constructors
|
|
if ((op->arguments[0]->type == Node::TYPE_TYPE || (op->arguments[0]->type == Node::TYPE_BUILT_IN_FUNCTION && GDScriptFunctions::is_deterministic(static_cast<BuiltInFunctionNode *>(op->arguments[0])->function))) && last_not_constant == 0) {
|
|
//native type constructor or intrinsic function
|
|
const Variant **vptr = nullptr;
|
|
Vector<Variant *> ptrs;
|
|
if (op->arguments.size() > 1) {
|
|
ptrs.resize(op->arguments.size() - 1);
|
|
for (int i = 0; i < ptrs.size(); i++) {
|
|
ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[i + 1]);
|
|
ptrs.write[i] = &cn->value;
|
|
}
|
|
|
|
vptr = (const Variant **)&ptrs[0];
|
|
}
|
|
|
|
Variant::CallError ce;
|
|
Variant v;
|
|
|
|
if (op->arguments[0]->type == Node::TYPE_TYPE) {
|
|
TypeNode *tn = static_cast<TypeNode *>(op->arguments[0]);
|
|
v = Variant::construct(tn->vtype, vptr, ptrs.size(), ce);
|
|
|
|
} else {
|
|
GDScriptFunctions::Function func = static_cast<BuiltInFunctionNode *>(op->arguments[0])->function;
|
|
GDScriptFunctions::call(func, vptr, ptrs.size(), v, ce);
|
|
}
|
|
|
|
if (ce.error != Variant::CallError::CALL_OK) {
|
|
String errwhere;
|
|
if (op->arguments[0]->type == Node::TYPE_TYPE) {
|
|
TypeNode *tn = static_cast<TypeNode *>(op->arguments[0]);
|
|
errwhere = "'" + Variant::get_type_name(tn->vtype) + "' constructor";
|
|
|
|
} else {
|
|
GDScriptFunctions::Function func = static_cast<BuiltInFunctionNode *>(op->arguments[0])->function;
|
|
errwhere = String("'") + GDScriptFunctions::get_func_name(func) + "' intrinsic function";
|
|
}
|
|
|
|
switch (ce.error) {
|
|
case Variant::CallError::CALL_ERROR_INVALID_ARGUMENT: {
|
|
_set_error("Invalid argument (#" + itos(ce.argument + 1) + ") for " + errwhere + ".");
|
|
|
|
} break;
|
|
case Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS: {
|
|
_set_error("Too many arguments for " + errwhere + ".");
|
|
} break;
|
|
case Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS: {
|
|
_set_error("Too few arguments for " + errwhere + ".");
|
|
} break;
|
|
default: {
|
|
_set_error("Invalid arguments for " + errwhere + ".");
|
|
|
|
} break;
|
|
}
|
|
|
|
error_line = op->line;
|
|
|
|
return p_node;
|
|
}
|
|
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
cn->value = v;
|
|
cn->datatype = _type_from_variant(v);
|
|
return cn;
|
|
}
|
|
|
|
return op; //don't reduce yet
|
|
|
|
} else if (op->op == OperatorNode::OP_YIELD) {
|
|
return op;
|
|
|
|
} else if (op->op == OperatorNode::OP_INDEX) {
|
|
//can reduce indices into constant arrays or dictionaries
|
|
|
|
if (all_constants) {
|
|
ConstantNode *ca = static_cast<ConstantNode *>(op->arguments[0]);
|
|
ConstantNode *cb = static_cast<ConstantNode *>(op->arguments[1]);
|
|
|
|
bool valid;
|
|
|
|
Variant v = ca->value.get(cb->value, &valid);
|
|
if (!valid) {
|
|
_set_error("invalid index in constant expression");
|
|
error_line = op->line;
|
|
return op;
|
|
}
|
|
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
cn->value = v;
|
|
cn->datatype = _type_from_variant(v);
|
|
return cn;
|
|
}
|
|
|
|
return op;
|
|
|
|
} else if (op->op == OperatorNode::OP_INDEX_NAMED) {
|
|
if (op->arguments[0]->type == Node::TYPE_CONSTANT && op->arguments[1]->type == Node::TYPE_IDENTIFIER) {
|
|
ConstantNode *ca = static_cast<ConstantNode *>(op->arguments[0]);
|
|
IdentifierNode *ib = static_cast<IdentifierNode *>(op->arguments[1]);
|
|
|
|
bool valid;
|
|
Variant v = ca->value.get_named(ib->name, &valid);
|
|
if (!valid) {
|
|
_set_error("invalid index '" + String(ib->name) + "' in constant expression");
|
|
error_line = op->line;
|
|
return op;
|
|
}
|
|
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
cn->value = v;
|
|
cn->datatype = _type_from_variant(v);
|
|
return cn;
|
|
}
|
|
|
|
return op;
|
|
}
|
|
|
|
//validate assignment (don't assign to constant expression
|
|
switch (op->op) {
|
|
case OperatorNode::OP_ASSIGN:
|
|
case OperatorNode::OP_ASSIGN_ADD:
|
|
case OperatorNode::OP_ASSIGN_SUB:
|
|
case OperatorNode::OP_ASSIGN_MUL:
|
|
case OperatorNode::OP_ASSIGN_DIV:
|
|
case OperatorNode::OP_ASSIGN_MOD:
|
|
case OperatorNode::OP_ASSIGN_SHIFT_LEFT:
|
|
case OperatorNode::OP_ASSIGN_SHIFT_RIGHT:
|
|
case OperatorNode::OP_ASSIGN_BIT_AND:
|
|
case OperatorNode::OP_ASSIGN_BIT_OR:
|
|
case OperatorNode::OP_ASSIGN_BIT_XOR: {
|
|
if (op->arguments[0]->type == Node::TYPE_CONSTANT) {
|
|
_set_error("Can't assign to constant", tokenizer->get_token_line() - 1);
|
|
error_line = op->line;
|
|
return op;
|
|
} else if (op->arguments[0]->type == Node::TYPE_SELF) {
|
|
_set_error("Can't assign to self.", op->line);
|
|
error_line = op->line;
|
|
return op;
|
|
}
|
|
|
|
if (op->arguments[0]->type == Node::TYPE_OPERATOR) {
|
|
OperatorNode *on = static_cast<OperatorNode *>(op->arguments[0]);
|
|
if (on->op != OperatorNode::OP_INDEX && on->op != OperatorNode::OP_INDEX_NAMED) {
|
|
_set_error("Can't assign to an expression", tokenizer->get_token_line() - 1);
|
|
error_line = op->line;
|
|
return op;
|
|
}
|
|
}
|
|
|
|
} break;
|
|
default: {
|
|
break;
|
|
}
|
|
}
|
|
//now se if all are constants
|
|
if (!all_constants) {
|
|
return op; //nothing to reduce from here on
|
|
}
|
|
#define _REDUCE_UNARY(m_vop) \
|
|
bool valid = false; \
|
|
Variant res; \
|
|
Variant::evaluate(m_vop, static_cast<ConstantNode *>(op->arguments[0])->value, Variant(), res, valid); \
|
|
if (!valid) { \
|
|
_set_error("Invalid operand for unary operator"); \
|
|
error_line = op->line; \
|
|
return p_node; \
|
|
} \
|
|
ConstantNode *cn = alloc_node<ConstantNode>(); \
|
|
cn->value = res; \
|
|
cn->datatype = _type_from_variant(res); \
|
|
return cn;
|
|
|
|
#define _REDUCE_BINARY(m_vop) \
|
|
bool valid = false; \
|
|
Variant res; \
|
|
Variant::evaluate(m_vop, static_cast<ConstantNode *>(op->arguments[0])->value, static_cast<ConstantNode *>(op->arguments[1])->value, res, valid); \
|
|
if (!valid) { \
|
|
_set_error("Invalid operands for operator"); \
|
|
error_line = op->line; \
|
|
return p_node; \
|
|
} \
|
|
ConstantNode *cn = alloc_node<ConstantNode>(); \
|
|
cn->value = res; \
|
|
cn->datatype = _type_from_variant(res); \
|
|
return cn;
|
|
|
|
switch (op->op) {
|
|
//unary operators
|
|
case OperatorNode::OP_NEG: {
|
|
_REDUCE_UNARY(Variant::OP_NEGATE);
|
|
} break;
|
|
case OperatorNode::OP_POS: {
|
|
_REDUCE_UNARY(Variant::OP_POSITIVE);
|
|
} break;
|
|
case OperatorNode::OP_NOT: {
|
|
_REDUCE_UNARY(Variant::OP_NOT);
|
|
} break;
|
|
case OperatorNode::OP_BIT_INVERT: {
|
|
_REDUCE_UNARY(Variant::OP_BIT_NEGATE);
|
|
} break;
|
|
//binary operators (in precedence order)
|
|
case OperatorNode::OP_IN: {
|
|
_REDUCE_BINARY(Variant::OP_IN);
|
|
} break;
|
|
case OperatorNode::OP_EQUAL: {
|
|
_REDUCE_BINARY(Variant::OP_EQUAL);
|
|
} break;
|
|
case OperatorNode::OP_NOT_EQUAL: {
|
|
_REDUCE_BINARY(Variant::OP_NOT_EQUAL);
|
|
} break;
|
|
case OperatorNode::OP_LESS: {
|
|
_REDUCE_BINARY(Variant::OP_LESS);
|
|
} break;
|
|
case OperatorNode::OP_LESS_EQUAL: {
|
|
_REDUCE_BINARY(Variant::OP_LESS_EQUAL);
|
|
} break;
|
|
case OperatorNode::OP_GREATER: {
|
|
_REDUCE_BINARY(Variant::OP_GREATER);
|
|
} break;
|
|
case OperatorNode::OP_GREATER_EQUAL: {
|
|
_REDUCE_BINARY(Variant::OP_GREATER_EQUAL);
|
|
} break;
|
|
case OperatorNode::OP_AND: {
|
|
_REDUCE_BINARY(Variant::OP_AND);
|
|
} break;
|
|
case OperatorNode::OP_OR: {
|
|
_REDUCE_BINARY(Variant::OP_OR);
|
|
} break;
|
|
case OperatorNode::OP_ADD: {
|
|
_REDUCE_BINARY(Variant::OP_ADD);
|
|
} break;
|
|
case OperatorNode::OP_SUB: {
|
|
_REDUCE_BINARY(Variant::OP_SUBTRACT);
|
|
} break;
|
|
case OperatorNode::OP_MUL: {
|
|
_REDUCE_BINARY(Variant::OP_MULTIPLY);
|
|
} break;
|
|
case OperatorNode::OP_DIV: {
|
|
_REDUCE_BINARY(Variant::OP_DIVIDE);
|
|
} break;
|
|
case OperatorNode::OP_MOD: {
|
|
_REDUCE_BINARY(Variant::OP_MODULE);
|
|
} break;
|
|
case OperatorNode::OP_SHIFT_LEFT: {
|
|
_REDUCE_BINARY(Variant::OP_SHIFT_LEFT);
|
|
} break;
|
|
case OperatorNode::OP_SHIFT_RIGHT: {
|
|
_REDUCE_BINARY(Variant::OP_SHIFT_RIGHT);
|
|
} break;
|
|
case OperatorNode::OP_BIT_AND: {
|
|
_REDUCE_BINARY(Variant::OP_BIT_AND);
|
|
} break;
|
|
case OperatorNode::OP_BIT_OR: {
|
|
_REDUCE_BINARY(Variant::OP_BIT_OR);
|
|
} break;
|
|
case OperatorNode::OP_BIT_XOR: {
|
|
_REDUCE_BINARY(Variant::OP_BIT_XOR);
|
|
} break;
|
|
case OperatorNode::OP_TERNARY_IF: {
|
|
if (static_cast<ConstantNode *>(op->arguments[0])->value.booleanize()) {
|
|
return op->arguments[1];
|
|
} else {
|
|
return op->arguments[2];
|
|
}
|
|
} break;
|
|
default: {
|
|
ERR_FAIL_V(op);
|
|
}
|
|
}
|
|
|
|
} break;
|
|
default: {
|
|
return p_node;
|
|
} break;
|
|
}
|
|
}
|
|
|
|
GDScriptParser::Node *GDScriptParser::_parse_and_reduce_expression(Node *p_parent, bool p_static, bool p_reduce_const, bool p_allow_assign) {
|
|
Node *expr = _parse_expression(p_parent, p_static, p_allow_assign, p_reduce_const);
|
|
if (!expr || error_set) {
|
|
return nullptr;
|
|
}
|
|
expr = _reduce_expression(expr, p_reduce_const);
|
|
if (!expr || error_set) {
|
|
return nullptr;
|
|
}
|
|
return expr;
|
|
}
|
|
|
|
bool GDScriptParser::_reduce_export_var_type(Variant &p_value, int p_line) {
|
|
if (p_value.get_type() == Variant::ARRAY) {
|
|
Array arr = p_value;
|
|
for (int i = 0; i < arr.size(); i++) {
|
|
if (!_reduce_export_var_type(arr[i], p_line)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (p_value.get_type() == Variant::DICTIONARY) {
|
|
Dictionary dict = p_value;
|
|
for (int i = 0; i < dict.size(); i++) {
|
|
Variant value = dict.get_value_at_index(i);
|
|
if (!_reduce_export_var_type(value, p_line)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// validate type
|
|
DataType type = _type_from_variant(p_value);
|
|
if (type.kind == DataType::BUILTIN) {
|
|
return true;
|
|
} else if (type.kind == DataType::NATIVE) {
|
|
if (ClassDB::is_parent_class(type.native_type, "Resource")) {
|
|
return true;
|
|
}
|
|
}
|
|
_set_error("Invalid export type. Only built-in and native resource types can be exported.", p_line);
|
|
return false;
|
|
}
|
|
|
|
bool GDScriptParser::_recover_from_completion() {
|
|
if (!completion_found) {
|
|
return false; //can't recover if no completion
|
|
}
|
|
//skip stuff until newline
|
|
while (tokenizer->get_token() != GDScriptTokenizer::TK_NEWLINE && tokenizer->get_token() != GDScriptTokenizer::TK_EOF && tokenizer->get_token() != GDScriptTokenizer::TK_ERROR) {
|
|
tokenizer->advance();
|
|
}
|
|
completion_found = false;
|
|
error_set = false;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_ERROR) {
|
|
error_set = true;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) {
|
|
PatternNode *pattern = alloc_node<PatternNode>();
|
|
|
|
GDScriptTokenizer::Token token = tokenizer->get_token();
|
|
if (error_set) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (token == GDScriptTokenizer::TK_EOF) {
|
|
return nullptr;
|
|
}
|
|
|
|
switch (token) {
|
|
// array
|
|
case GDScriptTokenizer::TK_BRACKET_OPEN: {
|
|
tokenizer->advance();
|
|
pattern->pt_type = GDScriptParser::PatternNode::PT_ARRAY;
|
|
while (true) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_BRACKET_CLOSE) {
|
|
tokenizer->advance();
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PERIOD && tokenizer->get_token(1) == GDScriptTokenizer::TK_PERIOD) {
|
|
// match everything
|
|
tokenizer->advance(2);
|
|
PatternNode *sub_pattern = alloc_node<PatternNode>();
|
|
sub_pattern->pt_type = GDScriptParser::PatternNode::PT_IGNORE_REST;
|
|
pattern->array.push_back(sub_pattern);
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA && tokenizer->get_token(1) == GDScriptTokenizer::TK_BRACKET_CLOSE) {
|
|
tokenizer->advance(2);
|
|
break;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_BRACKET_CLOSE) {
|
|
tokenizer->advance(1);
|
|
break;
|
|
} else {
|
|
_set_error("'..' pattern only allowed at the end of an array pattern");
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
PatternNode *sub_pattern = _parse_pattern(p_static);
|
|
if (!sub_pattern) {
|
|
return nullptr;
|
|
}
|
|
|
|
pattern->array.push_back(sub_pattern);
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance();
|
|
continue;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_BRACKET_CLOSE) {
|
|
tokenizer->advance();
|
|
break;
|
|
} else {
|
|
_set_error("Not a valid pattern");
|
|
return nullptr;
|
|
}
|
|
}
|
|
} break;
|
|
// bind
|
|
case GDScriptTokenizer::TK_PR_VAR: {
|
|
tokenizer->advance();
|
|
if (!tokenizer->is_token_literal()) {
|
|
_set_error("Expected identifier for binding variable name.");
|
|
return nullptr;
|
|
}
|
|
pattern->pt_type = GDScriptParser::PatternNode::PT_BIND;
|
|
pattern->bind = tokenizer->get_token_literal();
|
|
// Check if variable name is already used
|
|
BlockNode *bl = current_block;
|
|
while (bl) {
|
|
if (bl->variables.has(pattern->bind)) {
|
|
_set_error("Binding name of '" + pattern->bind.operator String() + "' is already declared in this scope.");
|
|
return nullptr;
|
|
}
|
|
bl = bl->parent_block;
|
|
}
|
|
// Create local variable for proper identifier detection later
|
|
LocalVarNode *lv = alloc_node<LocalVarNode>();
|
|
lv->name = pattern->bind;
|
|
current_block->variables.insert(lv->name, lv);
|
|
tokenizer->advance();
|
|
} break;
|
|
// dictionary
|
|
case GDScriptTokenizer::TK_CURLY_BRACKET_OPEN: {
|
|
tokenizer->advance();
|
|
pattern->pt_type = GDScriptParser::PatternNode::PT_DICTIONARY;
|
|
while (true) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) {
|
|
tokenizer->advance();
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PERIOD && tokenizer->get_token(1) == GDScriptTokenizer::TK_PERIOD) {
|
|
// match everything
|
|
tokenizer->advance(2);
|
|
PatternNode *sub_pattern = alloc_node<PatternNode>();
|
|
sub_pattern->pt_type = PatternNode::PT_IGNORE_REST;
|
|
pattern->array.push_back(sub_pattern);
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA && tokenizer->get_token(1) == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) {
|
|
tokenizer->advance(2);
|
|
break;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) {
|
|
tokenizer->advance(1);
|
|
break;
|
|
} else {
|
|
_set_error("'..' pattern only allowed at the end of a dictionary pattern");
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
Node *key = _parse_and_reduce_expression(pattern, p_static);
|
|
if (!key) {
|
|
_set_error("Not a valid key in pattern");
|
|
return nullptr;
|
|
}
|
|
|
|
if (key->type != GDScriptParser::Node::TYPE_CONSTANT) {
|
|
_set_error("Not a constant expression as key");
|
|
return nullptr;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) {
|
|
tokenizer->advance();
|
|
|
|
PatternNode *value = _parse_pattern(p_static);
|
|
if (!value) {
|
|
_set_error("Expected pattern in dictionary value");
|
|
return nullptr;
|
|
}
|
|
|
|
pattern->dictionary.insert(static_cast<ConstantNode *>(key), value);
|
|
} else {
|
|
pattern->dictionary.insert(static_cast<ConstantNode *>(key), NULL);
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance();
|
|
continue;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) {
|
|
tokenizer->advance();
|
|
break;
|
|
} else {
|
|
_set_error("Not a valid pattern");
|
|
return nullptr;
|
|
}
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_WILDCARD: {
|
|
tokenizer->advance();
|
|
pattern->pt_type = PatternNode::PT_WILDCARD;
|
|
} break;
|
|
// all the constants like strings and numbers
|
|
default: {
|
|
Node *value = _parse_and_reduce_expression(pattern, p_static);
|
|
if (!value) {
|
|
_set_error("Expect constant expression or variables in a pattern");
|
|
return nullptr;
|
|
}
|
|
|
|
if (value->type == Node::TYPE_OPERATOR) {
|
|
// Maybe it's SomeEnum.VALUE
|
|
Node *current_value = value;
|
|
|
|
while (current_value->type == Node::TYPE_OPERATOR) {
|
|
OperatorNode *op_node = static_cast<OperatorNode *>(current_value);
|
|
|
|
if (op_node->op != OperatorNode::OP_INDEX_NAMED) {
|
|
_set_error("Invalid operator in pattern. Only index (`A.B`) is allowed");
|
|
return nullptr;
|
|
}
|
|
current_value = op_node->arguments[0];
|
|
}
|
|
|
|
if (current_value->type != Node::TYPE_IDENTIFIER) {
|
|
_set_error("Only constant expression or variables allowed in a pattern");
|
|
return nullptr;
|
|
}
|
|
|
|
} else if (value->type != Node::TYPE_IDENTIFIER && value->type != Node::TYPE_CONSTANT) {
|
|
_set_error("Only constant expressions or variables allowed in a pattern");
|
|
return nullptr;
|
|
}
|
|
|
|
pattern->pt_type = PatternNode::PT_CONSTANT;
|
|
pattern->constant = value;
|
|
} break;
|
|
}
|
|
|
|
return pattern;
|
|
}
|
|
|
|
void GDScriptParser::_parse_pattern_block(BlockNode *p_block, Vector<PatternBranchNode *> &p_branches, bool p_static) {
|
|
IndentLevel current_level = indent_level.back()->get();
|
|
|
|
p_block->has_return = true;
|
|
|
|
bool catch_all_appeared = false;
|
|
|
|
while (true) {
|
|
while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE && _parse_newline()) {
|
|
;
|
|
}
|
|
|
|
// GDScriptTokenizer::Token token = tokenizer->get_token();
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
if (current_level.indent > indent_level.back()->get().indent) {
|
|
break; // go back a level
|
|
}
|
|
|
|
pending_newline = -1;
|
|
|
|
PatternBranchNode *branch = alloc_node<PatternBranchNode>();
|
|
branch->body = alloc_node<BlockNode>();
|
|
branch->body->parent_block = p_block;
|
|
p_block->sub_blocks.push_back(branch->body);
|
|
current_block = branch->body;
|
|
|
|
branch->patterns.push_back(_parse_pattern(p_static));
|
|
if (!branch->patterns[0]) {
|
|
break;
|
|
}
|
|
|
|
bool has_binding = branch->patterns[0]->pt_type == PatternNode::PT_BIND;
|
|
bool catch_all = has_binding || branch->patterns[0]->pt_type == PatternNode::PT_WILDCARD;
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
// Branches after a wildcard or binding are unreachable
|
|
if (catch_all_appeared && !current_function->has_unreachable_code) {
|
|
_add_warning(GDScriptWarning::UNREACHABLE_CODE, -1, current_function->name.operator String());
|
|
current_function->has_unreachable_code = true;
|
|
}
|
|
#endif
|
|
|
|
while (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance();
|
|
branch->patterns.push_back(_parse_pattern(p_static));
|
|
if (!branch->patterns[branch->patterns.size() - 1]) {
|
|
return;
|
|
}
|
|
|
|
PatternNode::PatternType pt = branch->patterns[branch->patterns.size() - 1]->pt_type;
|
|
|
|
if (pt == PatternNode::PT_BIND) {
|
|
_set_error("Cannot use bindings with multipattern.");
|
|
return;
|
|
}
|
|
|
|
catch_all = catch_all || pt == PatternNode::PT_WILDCARD;
|
|
}
|
|
|
|
catch_all_appeared = catch_all_appeared || catch_all;
|
|
|
|
if (!_enter_indent_block()) {
|
|
_set_error("Expected block in pattern branch");
|
|
return;
|
|
}
|
|
|
|
_parse_block(branch->body, p_static);
|
|
|
|
current_block = p_block;
|
|
|
|
if (!branch->body->has_return) {
|
|
p_block->has_return = false;
|
|
}
|
|
|
|
p_branches.push_back(branch);
|
|
}
|
|
|
|
// Even if all branches return, there is possibility of default fallthrough
|
|
if (!catch_all_appeared) {
|
|
p_block->has_return = false;
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_match, Node *&p_resulting_node, Map<StringName, Node *> &p_bindings) {
|
|
const DataType &to_match_type = p_node_to_match->get_datatype();
|
|
|
|
switch (p_pattern->pt_type) {
|
|
case PatternNode::PT_CONSTANT: {
|
|
DataType pattern_type = _reduce_node_type(p_pattern->constant);
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
OperatorNode *type_comp = nullptr;
|
|
|
|
// static type check if possible
|
|
if (pattern_type.has_type && to_match_type.has_type) {
|
|
if (!_is_type_compatible(to_match_type, pattern_type) && !_is_type_compatible(pattern_type, to_match_type)) {
|
|
_set_error("The pattern type (" + pattern_type.to_string() + ") isn't compatible with the type of the value to match (" + to_match_type.to_string() + ").",
|
|
p_pattern->line);
|
|
return;
|
|
}
|
|
} else {
|
|
// runtime typecheck
|
|
BuiltInFunctionNode *typeof_node = alloc_node<BuiltInFunctionNode>();
|
|
typeof_node->function = GDScriptFunctions::TYPE_OF;
|
|
|
|
OperatorNode *typeof_match_value = alloc_node<OperatorNode>();
|
|
typeof_match_value->op = OperatorNode::OP_CALL;
|
|
typeof_match_value->arguments.push_back(typeof_node);
|
|
typeof_match_value->arguments.push_back(p_node_to_match);
|
|
|
|
OperatorNode *typeof_pattern_value = alloc_node<OperatorNode>();
|
|
typeof_pattern_value->op = OperatorNode::OP_CALL;
|
|
typeof_pattern_value->arguments.push_back(typeof_node);
|
|
typeof_pattern_value->arguments.push_back(p_pattern->constant);
|
|
|
|
type_comp = alloc_node<OperatorNode>();
|
|
type_comp->op = OperatorNode::OP_EQUAL;
|
|
type_comp->arguments.push_back(typeof_match_value);
|
|
type_comp->arguments.push_back(typeof_pattern_value);
|
|
}
|
|
|
|
// compare the actual values
|
|
OperatorNode *value_comp = alloc_node<OperatorNode>();
|
|
value_comp->op = OperatorNode::OP_EQUAL;
|
|
value_comp->arguments.push_back(p_pattern->constant);
|
|
value_comp->arguments.push_back(p_node_to_match);
|
|
|
|
if (type_comp) {
|
|
OperatorNode *full_comparison = alloc_node<OperatorNode>();
|
|
full_comparison->op = OperatorNode::OP_AND;
|
|
full_comparison->arguments.push_back(type_comp);
|
|
full_comparison->arguments.push_back(value_comp);
|
|
|
|
p_resulting_node = full_comparison;
|
|
} else {
|
|
p_resulting_node = value_comp;
|
|
}
|
|
|
|
} break;
|
|
case PatternNode::PT_BIND: {
|
|
p_bindings[p_pattern->bind] = p_node_to_match;
|
|
|
|
// a bind always matches
|
|
ConstantNode *true_value = alloc_node<ConstantNode>();
|
|
true_value->value = Variant(true);
|
|
p_resulting_node = true_value;
|
|
} break;
|
|
case PatternNode::PT_ARRAY: {
|
|
bool open_ended = false;
|
|
|
|
if (p_pattern->array.size() > 0) {
|
|
if (p_pattern->array[p_pattern->array.size() - 1]->pt_type == PatternNode::PT_IGNORE_REST) {
|
|
open_ended = true;
|
|
}
|
|
}
|
|
|
|
// typeof(value_to_match) == TYPE_ARRAY && value_to_match.size() >= length
|
|
// typeof(value_to_match) == TYPE_ARRAY && value_to_match.size() == length
|
|
|
|
{
|
|
OperatorNode *type_comp = nullptr;
|
|
// static type check if possible
|
|
if (to_match_type.has_type) {
|
|
// must be an array
|
|
if (to_match_type.kind != DataType::BUILTIN || to_match_type.builtin_type != Variant::ARRAY) {
|
|
_set_error("Cannot match an array pattern with a non-array expression.", p_pattern->line);
|
|
return;
|
|
}
|
|
} else {
|
|
// runtime typecheck
|
|
BuiltInFunctionNode *typeof_node = alloc_node<BuiltInFunctionNode>();
|
|
typeof_node->function = GDScriptFunctions::TYPE_OF;
|
|
|
|
OperatorNode *typeof_match_value = alloc_node<OperatorNode>();
|
|
typeof_match_value->op = OperatorNode::OP_CALL;
|
|
typeof_match_value->arguments.push_back(typeof_node);
|
|
typeof_match_value->arguments.push_back(p_node_to_match);
|
|
|
|
IdentifierNode *typeof_array = alloc_node<IdentifierNode>();
|
|
typeof_array->name = "TYPE_ARRAY";
|
|
|
|
type_comp = alloc_node<OperatorNode>();
|
|
type_comp->op = OperatorNode::OP_EQUAL;
|
|
type_comp->arguments.push_back(typeof_match_value);
|
|
type_comp->arguments.push_back(typeof_array);
|
|
}
|
|
|
|
// size
|
|
ConstantNode *length = alloc_node<ConstantNode>();
|
|
length->value = Variant(open_ended ? p_pattern->array.size() - 1 : p_pattern->array.size());
|
|
|
|
OperatorNode *call = alloc_node<OperatorNode>();
|
|
call->op = OperatorNode::OP_CALL;
|
|
call->arguments.push_back(p_node_to_match);
|
|
|
|
IdentifierNode *size = alloc_node<IdentifierNode>();
|
|
size->name = "size";
|
|
call->arguments.push_back(size);
|
|
|
|
OperatorNode *length_comparison = alloc_node<OperatorNode>();
|
|
length_comparison->op = open_ended ? OperatorNode::OP_GREATER_EQUAL : OperatorNode::OP_EQUAL;
|
|
length_comparison->arguments.push_back(call);
|
|
length_comparison->arguments.push_back(length);
|
|
|
|
if (type_comp) {
|
|
OperatorNode *type_and_length_comparison = alloc_node<OperatorNode>();
|
|
type_and_length_comparison->op = OperatorNode::OP_AND;
|
|
type_and_length_comparison->arguments.push_back(type_comp);
|
|
type_and_length_comparison->arguments.push_back(length_comparison);
|
|
|
|
p_resulting_node = type_and_length_comparison;
|
|
} else {
|
|
p_resulting_node = length_comparison;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < p_pattern->array.size(); i++) {
|
|
PatternNode *pattern = p_pattern->array[i];
|
|
|
|
Node *condition = nullptr;
|
|
|
|
ConstantNode *index = alloc_node<ConstantNode>();
|
|
index->value = Variant(i);
|
|
|
|
OperatorNode *indexed_value = alloc_node<OperatorNode>();
|
|
indexed_value->op = OperatorNode::OP_INDEX;
|
|
indexed_value->arguments.push_back(p_node_to_match);
|
|
indexed_value->arguments.push_back(index);
|
|
|
|
_generate_pattern(pattern, indexed_value, condition, p_bindings);
|
|
|
|
// concatenate all the patterns with &&
|
|
OperatorNode *and_node = alloc_node<OperatorNode>();
|
|
and_node->op = OperatorNode::OP_AND;
|
|
and_node->arguments.push_back(p_resulting_node);
|
|
and_node->arguments.push_back(condition);
|
|
|
|
p_resulting_node = and_node;
|
|
}
|
|
|
|
} break;
|
|
case PatternNode::PT_DICTIONARY: {
|
|
bool open_ended = false;
|
|
|
|
if (p_pattern->array.size() > 0) {
|
|
open_ended = true;
|
|
}
|
|
|
|
// typeof(value_to_match) == TYPE_DICTIONARY && value_to_match.size() >= length
|
|
// typeof(value_to_match) == TYPE_DICTIONARY && value_to_match.size() == length
|
|
|
|
{
|
|
OperatorNode *type_comp = nullptr;
|
|
// static type check if possible
|
|
if (to_match_type.has_type) {
|
|
// must be an dictionary
|
|
if (to_match_type.kind != DataType::BUILTIN || to_match_type.builtin_type != Variant::DICTIONARY) {
|
|
_set_error("Cannot match an dictionary pattern with a non-dictionary expression.", p_pattern->line);
|
|
return;
|
|
}
|
|
} else {
|
|
// runtime typecheck
|
|
BuiltInFunctionNode *typeof_node = alloc_node<BuiltInFunctionNode>();
|
|
typeof_node->function = GDScriptFunctions::TYPE_OF;
|
|
|
|
OperatorNode *typeof_match_value = alloc_node<OperatorNode>();
|
|
typeof_match_value->op = OperatorNode::OP_CALL;
|
|
typeof_match_value->arguments.push_back(typeof_node);
|
|
typeof_match_value->arguments.push_back(p_node_to_match);
|
|
|
|
IdentifierNode *typeof_dictionary = alloc_node<IdentifierNode>();
|
|
typeof_dictionary->name = "TYPE_DICTIONARY";
|
|
|
|
type_comp = alloc_node<OperatorNode>();
|
|
type_comp->op = OperatorNode::OP_EQUAL;
|
|
type_comp->arguments.push_back(typeof_match_value);
|
|
type_comp->arguments.push_back(typeof_dictionary);
|
|
}
|
|
|
|
// size
|
|
ConstantNode *length = alloc_node<ConstantNode>();
|
|
length->value = Variant(open_ended ? p_pattern->dictionary.size() - 1 : p_pattern->dictionary.size());
|
|
|
|
OperatorNode *call = alloc_node<OperatorNode>();
|
|
call->op = OperatorNode::OP_CALL;
|
|
call->arguments.push_back(p_node_to_match);
|
|
|
|
IdentifierNode *size = alloc_node<IdentifierNode>();
|
|
size->name = "size";
|
|
call->arguments.push_back(size);
|
|
|
|
OperatorNode *length_comparison = alloc_node<OperatorNode>();
|
|
length_comparison->op = open_ended ? OperatorNode::OP_GREATER_EQUAL : OperatorNode::OP_EQUAL;
|
|
length_comparison->arguments.push_back(call);
|
|
length_comparison->arguments.push_back(length);
|
|
|
|
if (type_comp) {
|
|
OperatorNode *type_and_length_comparison = alloc_node<OperatorNode>();
|
|
type_and_length_comparison->op = OperatorNode::OP_AND;
|
|
type_and_length_comparison->arguments.push_back(type_comp);
|
|
type_and_length_comparison->arguments.push_back(length_comparison);
|
|
|
|
p_resulting_node = type_and_length_comparison;
|
|
} else {
|
|
p_resulting_node = length_comparison;
|
|
}
|
|
}
|
|
|
|
for (Map<ConstantNode *, PatternNode *>::Element *e = p_pattern->dictionary.front(); e; e = e->next()) {
|
|
Node *condition = nullptr;
|
|
|
|
// check for has, then for pattern
|
|
|
|
IdentifierNode *has = alloc_node<IdentifierNode>();
|
|
has->name = "has";
|
|
|
|
OperatorNode *has_call = alloc_node<OperatorNode>();
|
|
has_call->op = OperatorNode::OP_CALL;
|
|
has_call->arguments.push_back(p_node_to_match);
|
|
has_call->arguments.push_back(has);
|
|
has_call->arguments.push_back(e->key());
|
|
|
|
if (e->value()) {
|
|
OperatorNode *indexed_value = alloc_node<OperatorNode>();
|
|
indexed_value->op = OperatorNode::OP_INDEX;
|
|
indexed_value->arguments.push_back(p_node_to_match);
|
|
indexed_value->arguments.push_back(e->key());
|
|
|
|
_generate_pattern(e->value(), indexed_value, condition, p_bindings);
|
|
|
|
OperatorNode *has_and_pattern = alloc_node<OperatorNode>();
|
|
has_and_pattern->op = OperatorNode::OP_AND;
|
|
has_and_pattern->arguments.push_back(has_call);
|
|
has_and_pattern->arguments.push_back(condition);
|
|
|
|
condition = has_and_pattern;
|
|
|
|
} else {
|
|
condition = has_call;
|
|
}
|
|
|
|
// concatenate all the patterns with &&
|
|
OperatorNode *and_node = alloc_node<OperatorNode>();
|
|
and_node->op = OperatorNode::OP_AND;
|
|
and_node->arguments.push_back(p_resulting_node);
|
|
and_node->arguments.push_back(condition);
|
|
|
|
p_resulting_node = and_node;
|
|
}
|
|
|
|
} break;
|
|
case PatternNode::PT_IGNORE_REST:
|
|
case PatternNode::PT_WILDCARD: {
|
|
// simply generate a `true`
|
|
ConstantNode *true_value = alloc_node<ConstantNode>();
|
|
true_value->value = Variant(true);
|
|
p_resulting_node = true_value;
|
|
} break;
|
|
default: {
|
|
} break;
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::_transform_match_statment(MatchNode *p_match_statement) {
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = "#match_value";
|
|
id->line = p_match_statement->line;
|
|
id->datatype = _reduce_node_type(p_match_statement->val_to_match);
|
|
if (id->datatype.has_type) {
|
|
_mark_line_as_safe(id->line);
|
|
} else {
|
|
_mark_line_as_unsafe(id->line);
|
|
}
|
|
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < p_match_statement->branches.size(); i++) {
|
|
PatternBranchNode *branch = p_match_statement->branches[i];
|
|
|
|
MatchNode::CompiledPatternBranch compiled_branch;
|
|
compiled_branch.compiled_pattern = nullptr;
|
|
|
|
Map<StringName, Node *> binding;
|
|
|
|
for (int j = 0; j < branch->patterns.size(); j++) {
|
|
PatternNode *pattern = branch->patterns[j];
|
|
_mark_line_as_safe(pattern->line);
|
|
|
|
Map<StringName, Node *> bindings;
|
|
Node *resulting_node = nullptr;
|
|
_generate_pattern(pattern, id, resulting_node, bindings);
|
|
|
|
if (!resulting_node) {
|
|
return;
|
|
}
|
|
|
|
if (!binding.empty() && !bindings.empty()) {
|
|
_set_error("Multipatterns can't contain bindings");
|
|
return;
|
|
} else {
|
|
binding = bindings;
|
|
}
|
|
|
|
// Result is always a boolean
|
|
DataType resulting_node_type;
|
|
resulting_node_type.has_type = true;
|
|
resulting_node_type.is_constant = true;
|
|
resulting_node_type.kind = DataType::BUILTIN;
|
|
resulting_node_type.builtin_type = Variant::BOOL;
|
|
resulting_node->set_datatype(resulting_node_type);
|
|
|
|
if (compiled_branch.compiled_pattern) {
|
|
OperatorNode *or_node = alloc_node<OperatorNode>();
|
|
or_node->op = OperatorNode::OP_OR;
|
|
or_node->arguments.push_back(compiled_branch.compiled_pattern);
|
|
or_node->arguments.push_back(resulting_node);
|
|
|
|
compiled_branch.compiled_pattern = or_node;
|
|
} else {
|
|
// single pattern | first one
|
|
compiled_branch.compiled_pattern = resulting_node;
|
|
}
|
|
}
|
|
|
|
// prepare the body ...hehe
|
|
for (Map<StringName, Node *>::Element *e = binding.front(); e; e = e->next()) {
|
|
if (!branch->body->variables.has(e->key())) {
|
|
_set_error("Parser bug: missing pattern bind variable.", branch->line);
|
|
ERR_FAIL();
|
|
}
|
|
|
|
LocalVarNode *local_var = branch->body->variables[e->key()];
|
|
local_var->assign = e->value();
|
|
local_var->set_datatype(local_var->assign->get_datatype());
|
|
local_var->assignments++;
|
|
|
|
IdentifierNode *id2 = alloc_node<IdentifierNode>();
|
|
id2->name = local_var->name;
|
|
id2->datatype = local_var->datatype;
|
|
id2->declared_block = branch->body;
|
|
id2->set_datatype(local_var->assign->get_datatype());
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_ASSIGN;
|
|
op->arguments.push_back(id2);
|
|
op->arguments.push_back(local_var->assign);
|
|
local_var->assign_op = op;
|
|
|
|
branch->body->statements.insert(0, op);
|
|
branch->body->statements.insert(0, local_var);
|
|
}
|
|
|
|
compiled_branch.body = branch->body;
|
|
|
|
p_match_statement->compiled_pattern_branches.push_back(compiled_branch);
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) {
|
|
IndentLevel current_level = indent_level.back()->get();
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
|
|
pending_newline = -1; // reset for the new block
|
|
|
|
NewLineNode *nl = alloc_node<NewLineNode>();
|
|
|
|
nl->line = tokenizer->get_token_line();
|
|
p_block->statements.push_back(nl);
|
|
#endif
|
|
|
|
bool is_first_line = true;
|
|
|
|
while (true) {
|
|
if (!is_first_line && indent_level.back()->prev() && indent_level.back()->prev()->get().indent == current_level.indent) {
|
|
if (indent_level.back()->prev()->get().is_mixed(current_level)) {
|
|
_set_error("Mixed tabs and spaces in indentation.");
|
|
return;
|
|
}
|
|
// pythonic single-line expression, don't parse future lines
|
|
indent_level.pop_back();
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
return;
|
|
}
|
|
is_first_line = false;
|
|
|
|
GDScriptTokenizer::Token token = tokenizer->get_token();
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
if (current_level.indent > indent_level.back()->get().indent) {
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
return; //go back a level
|
|
}
|
|
|
|
if (pending_newline != -1) {
|
|
NewLineNode *nl2 = alloc_node<NewLineNode>();
|
|
nl2->line = pending_newline;
|
|
p_block->statements.push_back(nl2);
|
|
pending_newline = -1;
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
switch (token) {
|
|
case GDScriptTokenizer::TK_EOF:
|
|
case GDScriptTokenizer::TK_ERROR:
|
|
case GDScriptTokenizer::TK_NEWLINE:
|
|
case GDScriptTokenizer::TK_CF_PASS: {
|
|
// will check later
|
|
} break;
|
|
default: {
|
|
if (p_block->has_return && !current_function->has_unreachable_code) {
|
|
_add_warning(GDScriptWarning::UNREACHABLE_CODE, -1, current_function->name.operator String());
|
|
current_function->has_unreachable_code = true;
|
|
}
|
|
} break;
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
switch (token) {
|
|
case GDScriptTokenizer::TK_EOF:
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
case GDScriptTokenizer::TK_ERROR: {
|
|
return; //go back
|
|
|
|
//end of file!
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_NEWLINE: {
|
|
int line = tokenizer->get_token_line();
|
|
|
|
if (!_parse_newline()) {
|
|
if (!error_set) {
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
pending_newline = p_block->end_line;
|
|
}
|
|
return;
|
|
}
|
|
|
|
_mark_line_as_safe(line);
|
|
NewLineNode *nl2 = alloc_node<NewLineNode>();
|
|
nl2->line = line;
|
|
p_block->statements.push_back(nl2);
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_CF_PASS: {
|
|
if (tokenizer->get_token(1) != GDScriptTokenizer::TK_SEMICOLON && tokenizer->get_token(1) != GDScriptTokenizer::TK_NEWLINE && tokenizer->get_token(1) != GDScriptTokenizer::TK_EOF) {
|
|
_set_error("Expected \";\" or a line break.");
|
|
return;
|
|
}
|
|
_mark_line_as_safe(tokenizer->get_token_line());
|
|
tokenizer->advance();
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_SEMICOLON) {
|
|
// Ignore semicolon after 'pass'.
|
|
tokenizer->advance();
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_VAR: {
|
|
// Variable declaration and (eventual) initialization.
|
|
|
|
tokenizer->advance();
|
|
int var_line = tokenizer->get_token_line();
|
|
if (!tokenizer->is_token_literal(0, true)) {
|
|
_set_error("Expected an identifier for the local variable name.");
|
|
return;
|
|
}
|
|
StringName n = tokenizer->get_token_literal();
|
|
if (current_function) {
|
|
for (int i = 0; i < current_function->arguments.size(); i++) {
|
|
if (n == current_function->arguments[i]) {
|
|
_set_error("Variable \"" + String(n) + "\" already defined in the scope (at line " + itos(current_function->line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
BlockNode *check_block = p_block;
|
|
while (check_block) {
|
|
if (check_block->variables.has(n)) {
|
|
_set_error("Variable \"" + String(n) + "\" already defined in the scope (at line " + itos(check_block->variables[n]->line) + ").");
|
|
return;
|
|
}
|
|
check_block = check_block->parent_block;
|
|
}
|
|
tokenizer->advance();
|
|
|
|
//must know when the local variable is declared
|
|
LocalVarNode *lv = alloc_node<LocalVarNode>();
|
|
lv->name = n;
|
|
lv->line = var_line;
|
|
p_block->statements.push_back(lv);
|
|
|
|
Node *assigned = nullptr;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) {
|
|
if (tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
lv->datatype = DataType();
|
|
#ifdef DEBUG_ENABLED
|
|
lv->datatype.infer_type = true;
|
|
#endif
|
|
tokenizer->advance();
|
|
} else if (!_parse_type(lv->datatype)) {
|
|
_set_error("Expected a type for the variable.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
tokenizer->advance();
|
|
Node *subexpr = _parse_and_reduce_expression(p_block, p_static);
|
|
if (!subexpr) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
lv->assignments++;
|
|
assigned = subexpr;
|
|
} else {
|
|
assigned = _get_default_value_for_type(lv->datatype, var_line);
|
|
}
|
|
//must be added later, to avoid self-referencing.
|
|
p_block->variables.insert(n, lv);
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = n;
|
|
id->declared_block = p_block;
|
|
id->line = var_line;
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_ASSIGN;
|
|
op->arguments.push_back(id);
|
|
op->arguments.push_back(assigned);
|
|
op->line = var_line;
|
|
p_block->statements.push_back(op);
|
|
lv->assign_op = op;
|
|
lv->assign = assigned;
|
|
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("var");
|
|
return;
|
|
}
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_CF_IF: {
|
|
tokenizer->advance();
|
|
|
|
Node *condition = _parse_and_reduce_expression(p_block, p_static);
|
|
if (!condition) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
ControlFlowNode *cf_if = alloc_node<ControlFlowNode>();
|
|
|
|
cf_if->cf_type = ControlFlowNode::CF_IF;
|
|
cf_if->arguments.push_back(condition);
|
|
|
|
cf_if->body = alloc_node<BlockNode>();
|
|
cf_if->body->parent_block = p_block;
|
|
cf_if->body->if_condition = condition; //helps code completion
|
|
|
|
p_block->sub_blocks.push_back(cf_if->body);
|
|
|
|
if (!_enter_indent_block(cf_if->body)) {
|
|
_set_error("Expected an indented block after \"if\".");
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
return;
|
|
}
|
|
|
|
current_block = cf_if->body;
|
|
_parse_block(cf_if->body, p_static);
|
|
current_block = p_block;
|
|
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
p_block->statements.push_back(cf_if);
|
|
|
|
bool all_have_return = cf_if->body->has_return;
|
|
bool have_else = false;
|
|
|
|
while (true) {
|
|
while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE && _parse_newline()) {
|
|
;
|
|
}
|
|
|
|
if (indent_level.back()->get().indent < current_level.indent) { //not at current indent level
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
return;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CF_ELIF) {
|
|
if (indent_level.back()->get().indent > current_level.indent) {
|
|
_set_error("Invalid indentation.");
|
|
return;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
cf_if->body_else = alloc_node<BlockNode>();
|
|
cf_if->body_else->parent_block = p_block;
|
|
p_block->sub_blocks.push_back(cf_if->body_else);
|
|
|
|
ControlFlowNode *cf_else = alloc_node<ControlFlowNode>();
|
|
cf_else->cf_type = ControlFlowNode::CF_IF;
|
|
|
|
//condition
|
|
Node *condition2 = _parse_and_reduce_expression(p_block, p_static);
|
|
if (!condition2) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
cf_else->arguments.push_back(condition2);
|
|
cf_else->cf_type = ControlFlowNode::CF_IF;
|
|
|
|
cf_if->body_else->statements.push_back(cf_else);
|
|
cf_if = cf_else;
|
|
cf_if->body = alloc_node<BlockNode>();
|
|
cf_if->body->parent_block = p_block;
|
|
p_block->sub_blocks.push_back(cf_if->body);
|
|
|
|
if (!_enter_indent_block(cf_if->body)) {
|
|
_set_error("Expected an indented block after \"elif\".");
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
return;
|
|
}
|
|
|
|
current_block = cf_else->body;
|
|
_parse_block(cf_else->body, p_static);
|
|
current_block = p_block;
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
all_have_return = all_have_return && cf_else->body->has_return;
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CF_ELSE) {
|
|
if (indent_level.back()->get().indent > current_level.indent) {
|
|
_set_error("Invalid indentation.");
|
|
return;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
cf_if->body_else = alloc_node<BlockNode>();
|
|
cf_if->body_else->parent_block = p_block;
|
|
p_block->sub_blocks.push_back(cf_if->body_else);
|
|
|
|
if (!_enter_indent_block(cf_if->body_else)) {
|
|
_set_error("Expected an indented block after \"else\".");
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
return;
|
|
}
|
|
current_block = cf_if->body_else;
|
|
_parse_block(cf_if->body_else, p_static);
|
|
current_block = p_block;
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
all_have_return = all_have_return && cf_if->body_else->has_return;
|
|
have_else = true;
|
|
|
|
break; //after else, exit
|
|
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
cf_if->body->has_return = all_have_return;
|
|
// If there's no else block, path out of the if might not have a return
|
|
p_block->has_return = all_have_return && have_else;
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_CF_WHILE: {
|
|
tokenizer->advance();
|
|
Node *condition2 = _parse_and_reduce_expression(p_block, p_static);
|
|
if (!condition2) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
ControlFlowNode *cf_while = alloc_node<ControlFlowNode>();
|
|
|
|
cf_while->cf_type = ControlFlowNode::CF_WHILE;
|
|
cf_while->arguments.push_back(condition2);
|
|
|
|
cf_while->body = alloc_node<BlockNode>();
|
|
cf_while->body->parent_block = p_block;
|
|
cf_while->body->can_break = true;
|
|
cf_while->body->can_continue = true;
|
|
p_block->sub_blocks.push_back(cf_while->body);
|
|
|
|
if (!_enter_indent_block(cf_while->body)) {
|
|
_set_error("Expected an indented block after \"while\".");
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
return;
|
|
}
|
|
|
|
current_block = cf_while->body;
|
|
_parse_block(cf_while->body, p_static);
|
|
current_block = p_block;
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
p_block->statements.push_back(cf_while);
|
|
} break;
|
|
case GDScriptTokenizer::TK_CF_FOR: {
|
|
tokenizer->advance();
|
|
|
|
if (!tokenizer->is_token_literal(0, true)) {
|
|
_set_error("Identifier expected after \"for\".");
|
|
}
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = tokenizer->get_token_identifier();
|
|
#ifdef DEBUG_ENABLED
|
|
for (int j = 0; j < current_class->variables.size(); j++) {
|
|
if (current_class->variables[j].identifier == id->name) {
|
|
_add_warning(GDScriptWarning::SHADOWED_VARIABLE, id->line, id->name, itos(current_class->variables[j].line));
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
BlockNode *check_block = p_block;
|
|
while (check_block) {
|
|
if (check_block->variables.has(id->name)) {
|
|
_set_error("Variable \"" + String(id->name) + "\" already defined in the scope (at line " + itos(check_block->variables[id->name]->line) + ").");
|
|
return;
|
|
}
|
|
check_block = check_block->parent_block;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_OP_IN) {
|
|
_set_error("\"in\" expected after identifier.");
|
|
return;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
Node *container = _parse_and_reduce_expression(p_block, p_static);
|
|
if (!container) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
DataType iter_type;
|
|
|
|
if (container->type == Node::TYPE_OPERATOR) {
|
|
OperatorNode *op = static_cast<OperatorNode *>(container);
|
|
if (op->op == OperatorNode::OP_CALL && op->arguments[0]->type == Node::TYPE_BUILT_IN_FUNCTION && static_cast<BuiltInFunctionNode *>(op->arguments[0])->function == GDScriptFunctions::GEN_RANGE) {
|
|
//iterating a range, so see if range() can be optimized without allocating memory, by replacing it by vectors (which can work as iterable too!)
|
|
|
|
Vector<Node *> args;
|
|
Vector<double> constants;
|
|
|
|
bool constant = true;
|
|
|
|
for (int i = 1; i < op->arguments.size(); i++) {
|
|
args.push_back(op->arguments[i]);
|
|
if (op->arguments[i]->type == Node::TYPE_CONSTANT) {
|
|
ConstantNode *c = static_cast<ConstantNode *>(op->arguments[i]);
|
|
if (c->value.get_type() == Variant::REAL || c->value.get_type() == Variant::INT) {
|
|
constants.push_back(c->value);
|
|
} else {
|
|
constant = false;
|
|
}
|
|
} else {
|
|
constant = false;
|
|
}
|
|
}
|
|
|
|
if (args.size() > 0 && args.size() < 4) {
|
|
if (constant) {
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
switch (args.size()) {
|
|
case 1:
|
|
cn->value = (int)constants[0];
|
|
break;
|
|
case 2:
|
|
cn->value = Vector2(constants[0], constants[1]);
|
|
break;
|
|
case 3:
|
|
cn->value = Vector3(constants[0], constants[1], constants[2]);
|
|
break;
|
|
}
|
|
cn->datatype = _type_from_variant(cn->value);
|
|
container = cn;
|
|
} else {
|
|
OperatorNode *on = alloc_node<OperatorNode>();
|
|
on->op = OperatorNode::OP_CALL;
|
|
|
|
TypeNode *tn = alloc_node<TypeNode>();
|
|
on->arguments.push_back(tn);
|
|
|
|
switch (args.size()) {
|
|
case 1:
|
|
tn->vtype = Variant::INT;
|
|
break;
|
|
case 2:
|
|
tn->vtype = Variant::VECTOR2;
|
|
break;
|
|
case 3:
|
|
tn->vtype = Variant::VECTOR3;
|
|
break;
|
|
}
|
|
|
|
for (int i = 0; i < args.size(); i++) {
|
|
on->arguments.push_back(args[i]);
|
|
}
|
|
|
|
container = on;
|
|
}
|
|
}
|
|
|
|
iter_type.has_type = true;
|
|
iter_type.kind = DataType::BUILTIN;
|
|
iter_type.builtin_type = Variant::INT;
|
|
}
|
|
}
|
|
|
|
ControlFlowNode *cf_for = alloc_node<ControlFlowNode>();
|
|
|
|
cf_for->cf_type = ControlFlowNode::CF_FOR;
|
|
cf_for->arguments.push_back(id);
|
|
cf_for->arguments.push_back(container);
|
|
|
|
cf_for->body = alloc_node<BlockNode>();
|
|
cf_for->body->parent_block = p_block;
|
|
cf_for->body->can_break = true;
|
|
cf_for->body->can_continue = true;
|
|
p_block->sub_blocks.push_back(cf_for->body);
|
|
|
|
if (!_enter_indent_block(cf_for->body)) {
|
|
_set_error("Expected indented block after \"for\".");
|
|
p_block->end_line = tokenizer->get_token_line();
|
|
return;
|
|
}
|
|
|
|
current_block = cf_for->body;
|
|
|
|
// this is for checking variable for redefining
|
|
// inside this _parse_block
|
|
LocalVarNode *lv = alloc_node<LocalVarNode>();
|
|
lv->name = id->name;
|
|
lv->line = id->line;
|
|
lv->assignments++;
|
|
id->declared_block = cf_for->body;
|
|
lv->set_datatype(iter_type);
|
|
id->set_datatype(iter_type);
|
|
cf_for->body->variables.insert(id->name, lv);
|
|
_parse_block(cf_for->body, p_static);
|
|
current_block = p_block;
|
|
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
p_block->statements.push_back(cf_for);
|
|
} break;
|
|
case GDScriptTokenizer::TK_CF_CONTINUE: {
|
|
BlockNode *upper_block = p_block;
|
|
bool is_continue_valid = false;
|
|
while (upper_block) {
|
|
if (upper_block->can_continue) {
|
|
is_continue_valid = true;
|
|
break;
|
|
}
|
|
upper_block = upper_block->parent_block;
|
|
}
|
|
|
|
if (!is_continue_valid) {
|
|
_set_error("Unexpected keyword \"continue\" outside a loop.");
|
|
return;
|
|
}
|
|
|
|
_mark_line_as_safe(tokenizer->get_token_line());
|
|
tokenizer->advance();
|
|
ControlFlowNode *cf_continue = alloc_node<ControlFlowNode>();
|
|
cf_continue->cf_type = ControlFlowNode::CF_CONTINUE;
|
|
p_block->statements.push_back(cf_continue);
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("continue");
|
|
return;
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_CF_BREAK: {
|
|
BlockNode *upper_block = p_block;
|
|
bool is_break_valid = false;
|
|
while (upper_block) {
|
|
if (upper_block->can_break) {
|
|
is_break_valid = true;
|
|
break;
|
|
}
|
|
upper_block = upper_block->parent_block;
|
|
}
|
|
|
|
if (!is_break_valid) {
|
|
_set_error("Unexpected keyword \"break\" outside a loop.");
|
|
return;
|
|
}
|
|
|
|
_mark_line_as_safe(tokenizer->get_token_line());
|
|
tokenizer->advance();
|
|
ControlFlowNode *cf_break = alloc_node<ControlFlowNode>();
|
|
cf_break->cf_type = ControlFlowNode::CF_BREAK;
|
|
p_block->statements.push_back(cf_break);
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("break");
|
|
return;
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_CF_RETURN: {
|
|
tokenizer->advance();
|
|
ControlFlowNode *cf_return = alloc_node<ControlFlowNode>();
|
|
cf_return->cf_type = ControlFlowNode::CF_RETURN;
|
|
cf_return->line = tokenizer->get_token_line(-1);
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_SEMICOLON || tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE || tokenizer->get_token() == GDScriptTokenizer::TK_EOF) {
|
|
//expect end of statement
|
|
p_block->statements.push_back(cf_return);
|
|
if (!_end_statement()) {
|
|
return;
|
|
}
|
|
} else {
|
|
//expect expression
|
|
Node *retexpr = _parse_and_reduce_expression(p_block, p_static);
|
|
if (!retexpr) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
cf_return->arguments.push_back(retexpr);
|
|
p_block->statements.push_back(cf_return);
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("return");
|
|
return;
|
|
}
|
|
}
|
|
p_block->has_return = true;
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_CF_MATCH: {
|
|
tokenizer->advance();
|
|
|
|
MatchNode *match_node = alloc_node<MatchNode>();
|
|
|
|
Node *val_to_match = _parse_and_reduce_expression(p_block, p_static);
|
|
|
|
if (!val_to_match) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
match_node->val_to_match = val_to_match;
|
|
|
|
if (!_enter_indent_block()) {
|
|
_set_error("Expected indented pattern matching block after \"match\".");
|
|
return;
|
|
}
|
|
|
|
BlockNode *compiled_branches = alloc_node<BlockNode>();
|
|
compiled_branches->parent_block = p_block;
|
|
compiled_branches->parent_class = p_block->parent_class;
|
|
compiled_branches->can_continue = true;
|
|
|
|
p_block->sub_blocks.push_back(compiled_branches);
|
|
|
|
_parse_pattern_block(compiled_branches, match_node->branches, p_static);
|
|
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
ControlFlowNode *match_cf_node = alloc_node<ControlFlowNode>();
|
|
match_cf_node->cf_type = ControlFlowNode::CF_MATCH;
|
|
match_cf_node->match = match_node;
|
|
match_cf_node->body = compiled_branches;
|
|
|
|
p_block->has_return = p_block->has_return || compiled_branches->has_return;
|
|
p_block->statements.push_back(match_cf_node);
|
|
|
|
_end_statement();
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_ASSERT: {
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
|
|
_set_error("Expected '(' after assert");
|
|
return;
|
|
}
|
|
|
|
int assert_line = tokenizer->get_token_line();
|
|
|
|
tokenizer->advance();
|
|
|
|
Vector<Node *> args;
|
|
const bool result = _parse_arguments(p_block, args, p_static);
|
|
if (!result) {
|
|
return;
|
|
}
|
|
|
|
if (args.empty() || args.size() > 2) {
|
|
_set_error("Wrong number of arguments, expected 1 or 2", assert_line);
|
|
return;
|
|
}
|
|
|
|
AssertNode *an = alloc_node<AssertNode>();
|
|
an->condition = _reduce_expression(args[0], p_static);
|
|
an->line = assert_line;
|
|
|
|
if (args.size() == 2) {
|
|
an->message = _reduce_expression(args[1], p_static);
|
|
} else {
|
|
ConstantNode *message_node = alloc_node<ConstantNode>();
|
|
message_node->value = String();
|
|
an->message = message_node;
|
|
}
|
|
|
|
p_block->statements.push_back(an);
|
|
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("assert");
|
|
return;
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_BREAKPOINT: {
|
|
tokenizer->advance();
|
|
BreakpointNode *bn = alloc_node<BreakpointNode>();
|
|
p_block->statements.push_back(bn);
|
|
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("breakpoint");
|
|
return;
|
|
}
|
|
} break;
|
|
default: {
|
|
Node *expression = _parse_and_reduce_expression(p_block, p_static, false, true);
|
|
if (!expression) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
p_block->statements.push_back(expression);
|
|
if (!_end_statement()) {
|
|
// Attempt to guess a better error message if the user "retypes" a variable
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON && tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
_set_error("Unexpected ':=', use '=' instead. Expected end of statement after expression.");
|
|
} else {
|
|
_set_error(vformat("Expected end of statement after expression, got %s instead.", tokenizer->get_token_name(tokenizer->get_token())));
|
|
}
|
|
return;
|
|
}
|
|
|
|
} break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool GDScriptParser::_parse_newline() {
|
|
if (tokenizer->get_token(1) != GDScriptTokenizer::TK_EOF && tokenizer->get_token(1) != GDScriptTokenizer::TK_NEWLINE) {
|
|
IndentLevel current_level = indent_level.back()->get();
|
|
int indent = tokenizer->get_token_line_indent();
|
|
int tabs = tokenizer->get_token_line_tab_indent();
|
|
IndentLevel new_level(indent, tabs);
|
|
|
|
if (new_level.is_mixed(current_level)) {
|
|
_set_error("Mixed tabs and spaces in indentation.");
|
|
return false;
|
|
}
|
|
|
|
if (indent > current_level.indent) {
|
|
_set_error("Unexpected indentation.");
|
|
return false;
|
|
}
|
|
|
|
if (indent < current_level.indent) {
|
|
while (indent < current_level.indent) {
|
|
//exit block
|
|
if (indent_level.size() == 1) {
|
|
_set_error("Invalid indentation. Bug?");
|
|
return false;
|
|
}
|
|
|
|
indent_level.pop_back();
|
|
|
|
if (indent_level.back()->get().indent < indent) {
|
|
_set_error("Unindent does not match any outer indentation level.");
|
|
return false;
|
|
}
|
|
|
|
if (indent_level.back()->get().is_mixed(current_level)) {
|
|
_set_error("Mixed tabs and spaces in indentation.");
|
|
return false;
|
|
}
|
|
|
|
current_level = indent_level.back()->get();
|
|
}
|
|
|
|
tokenizer->advance();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
tokenizer->advance();
|
|
return true;
|
|
}
|
|
|
|
void GDScriptParser::_parse_extends(ClassNode *p_class) {
|
|
if (p_class->extends_used) {
|
|
_set_error("\"extends\" can only be present once per script.");
|
|
return;
|
|
}
|
|
|
|
if (!p_class->constant_expressions.empty() || !p_class->subclasses.empty() || !p_class->functions.empty() || !p_class->variables.empty()) {
|
|
_set_error("\"extends\" must be used before anything else.");
|
|
return;
|
|
}
|
|
|
|
p_class->extends_used = true;
|
|
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_TYPE && tokenizer->get_token_type() == Variant::OBJECT) {
|
|
p_class->extends_class.push_back(Variant::get_type_name(Variant::OBJECT));
|
|
tokenizer->advance();
|
|
return;
|
|
}
|
|
|
|
// see if inheritance happens from a file
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT) {
|
|
Variant constant = tokenizer->get_token_constant();
|
|
if (constant.get_type() != Variant::STRING) {
|
|
_set_error("\"extends\" constant must be a string.");
|
|
return;
|
|
}
|
|
|
|
p_class->extends_file = constant;
|
|
tokenizer->advance();
|
|
|
|
// Add parent script as a dependency
|
|
String parent = constant;
|
|
if (parent.is_rel_path()) {
|
|
parent = base_path.plus_file(parent).simplify_path();
|
|
}
|
|
dependencies.push_back(parent);
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PERIOD) {
|
|
return;
|
|
} else {
|
|
tokenizer->advance();
|
|
}
|
|
}
|
|
|
|
while (true) {
|
|
switch (tokenizer->get_token()) {
|
|
case GDScriptTokenizer::TK_IDENTIFIER: {
|
|
StringName identifier = tokenizer->get_token_identifier();
|
|
p_class->extends_class.push_back(identifier);
|
|
} break;
|
|
|
|
case GDScriptTokenizer::TK_CURSOR:
|
|
case GDScriptTokenizer::TK_PERIOD:
|
|
break;
|
|
|
|
default: {
|
|
_set_error("Invalid \"extends\" syntax, expected string constant (path) and/or identifier (parent class).");
|
|
return;
|
|
}
|
|
}
|
|
|
|
tokenizer->advance(1);
|
|
|
|
switch (tokenizer->get_token()) {
|
|
case GDScriptTokenizer::TK_IDENTIFIER:
|
|
case GDScriptTokenizer::TK_PERIOD:
|
|
continue;
|
|
case GDScriptTokenizer::TK_CURSOR:
|
|
completion_type = COMPLETION_EXTENDS;
|
|
completion_class = current_class;
|
|
completion_function = current_function;
|
|
completion_line = tokenizer->get_token_line();
|
|
completion_block = current_block;
|
|
completion_ident_is_call = false;
|
|
completion_found = true;
|
|
return;
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::_parse_class(ClassNode *p_class) {
|
|
IndentLevel current_level = indent_level.back()->get();
|
|
|
|
while (true) {
|
|
GDScriptTokenizer::Token token = tokenizer->get_token();
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
if (current_level.indent > indent_level.back()->get().indent) {
|
|
p_class->end_line = tokenizer->get_token_line();
|
|
return; //go back a level
|
|
}
|
|
|
|
switch (token) {
|
|
case GDScriptTokenizer::TK_CURSOR: {
|
|
tokenizer->advance();
|
|
} break;
|
|
case GDScriptTokenizer::TK_EOF:
|
|
p_class->end_line = tokenizer->get_token_line();
|
|
case GDScriptTokenizer::TK_ERROR: {
|
|
return; //go back
|
|
//end of file!
|
|
} break;
|
|
case GDScriptTokenizer::TK_NEWLINE: {
|
|
if (!_parse_newline()) {
|
|
if (!error_set) {
|
|
p_class->end_line = tokenizer->get_token_line();
|
|
}
|
|
return;
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_EXTENDS: {
|
|
_mark_line_as_safe(tokenizer->get_token_line());
|
|
_parse_extends(p_class);
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("extends");
|
|
return;
|
|
}
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_CLASS_NAME: {
|
|
_mark_line_as_safe(tokenizer->get_token_line());
|
|
if (p_class->owner) {
|
|
_set_error("\"class_name\" is only valid for the main class namespace.");
|
|
return;
|
|
}
|
|
if (self_path.begins_with("res://") && self_path.find("::") != -1) {
|
|
_set_error("\"class_name\" isn't allowed in built-in scripts.");
|
|
return;
|
|
}
|
|
if (tokenizer->get_token(1) != GDScriptTokenizer::TK_IDENTIFIER) {
|
|
_set_error("\"class_name\" syntax: \"class_name <UniqueName>\"");
|
|
return;
|
|
}
|
|
if (p_class->classname_used) {
|
|
_set_error("\"class_name\" can only be present once per script.");
|
|
return;
|
|
}
|
|
|
|
p_class->classname_used = true;
|
|
|
|
p_class->name = tokenizer->get_token_identifier(1);
|
|
|
|
if (self_path != String() && ScriptServer::is_global_class(p_class->name) && ScriptServer::get_global_class_path(p_class->name) != self_path) {
|
|
_set_error("Unique global class \"" + p_class->name + "\" already exists at path: " + ScriptServer::get_global_class_path(p_class->name));
|
|
return;
|
|
}
|
|
|
|
if (ClassDB::class_exists(p_class->name)) {
|
|
_set_error("The class \"" + p_class->name + "\" shadows a native class.");
|
|
return;
|
|
}
|
|
|
|
if (p_class->classname_used && ProjectSettings::get_singleton()->has_setting("autoload/" + p_class->name)) {
|
|
const String autoload_path = ProjectSettings::get_singleton()->get_setting("autoload/" + p_class->name);
|
|
if (autoload_path.begins_with("*")) {
|
|
// It's a singleton, and not just a regular AutoLoad script.
|
|
_set_error("The class \"" + p_class->name + "\" conflicts with the AutoLoad singleton of the same name, and is therefore redundant. Remove the class_name declaration to fix this error.");
|
|
}
|
|
return;
|
|
}
|
|
|
|
tokenizer->advance(2);
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance();
|
|
|
|
if ((tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT && tokenizer->get_token_constant().get_type() == Variant::STRING)) {
|
|
#ifdef TOOLS_ENABLED
|
|
if (Engine::get_singleton()->is_editor_hint()) {
|
|
Variant constant = tokenizer->get_token_constant();
|
|
String icon_path = constant.operator String();
|
|
|
|
String abs_icon_path = icon_path.is_rel_path() ? self_path.get_base_dir().plus_file(icon_path).simplify_path() : icon_path;
|
|
if (!FileAccess::exists(abs_icon_path)) {
|
|
_set_error("No class icon found at: " + abs_icon_path);
|
|
return;
|
|
}
|
|
|
|
p_class->icon_path = icon_path;
|
|
}
|
|
#endif
|
|
|
|
tokenizer->advance();
|
|
} else {
|
|
_set_error("The optional parameter after \"class_name\" must be a string constant file path to an icon.");
|
|
return;
|
|
}
|
|
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT) {
|
|
_set_error("The class icon must be separated by a comma.");
|
|
return;
|
|
}
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_TOOL: {
|
|
if (p_class->tool) {
|
|
_set_error("The \"tool\" keyword can only be present once per script.");
|
|
return;
|
|
}
|
|
|
|
p_class->tool = true;
|
|
tokenizer->advance();
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_CLASS: {
|
|
//class inside class :D
|
|
|
|
StringName name;
|
|
|
|
if (tokenizer->get_token(1) != GDScriptTokenizer::TK_IDENTIFIER) {
|
|
_set_error("\"class\" syntax: \"class <Name>:\" or \"class <Name> extends <BaseClass>:\"");
|
|
return;
|
|
}
|
|
name = tokenizer->get_token_identifier(1);
|
|
tokenizer->advance(2);
|
|
|
|
// Check if name is shadowing something else
|
|
if (ClassDB::class_exists(name) || ClassDB::class_exists("_" + name.operator String())) {
|
|
_set_error("The class \"" + String(name) + "\" shadows a native class.");
|
|
return;
|
|
}
|
|
if (ScriptServer::is_global_class(name)) {
|
|
_set_error("Can't override name of the unique global class \"" + name + "\". It already exists at: " + ScriptServer::get_global_class_path(p_class->name));
|
|
return;
|
|
}
|
|
ClassNode *outer_class = p_class;
|
|
while (outer_class) {
|
|
for (int i = 0; i < outer_class->subclasses.size(); i++) {
|
|
if (outer_class->subclasses[i]->name == name) {
|
|
_set_error("Another class named \"" + String(name) + "\" already exists in this scope (at line " + itos(outer_class->subclasses[i]->line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
if (outer_class->constant_expressions.has(name)) {
|
|
_set_error("A constant named \"" + String(name) + "\" already exists in the outer class scope (at line" + itos(outer_class->constant_expressions[name].expression->line) + ").");
|
|
return;
|
|
}
|
|
for (int i = 0; i < outer_class->variables.size(); i++) {
|
|
if (outer_class->variables[i].identifier == name) {
|
|
_set_error("A variable named \"" + String(name) + "\" already exists in the outer class scope (at line " + itos(outer_class->variables[i].line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
outer_class = outer_class->owner;
|
|
}
|
|
|
|
ClassNode *newclass = alloc_node<ClassNode>();
|
|
newclass->initializer = alloc_node<BlockNode>();
|
|
newclass->initializer->parent_class = newclass;
|
|
newclass->ready = alloc_node<BlockNode>();
|
|
newclass->ready->parent_class = newclass;
|
|
newclass->name = name;
|
|
newclass->owner = p_class;
|
|
|
|
p_class->subclasses.push_back(newclass);
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_EXTENDS) {
|
|
_parse_extends(newclass);
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!_enter_indent_block()) {
|
|
_set_error("Indented block expected.");
|
|
return;
|
|
}
|
|
current_class = newclass;
|
|
_parse_class(newclass);
|
|
current_class = p_class;
|
|
|
|
} break;
|
|
/* this is for functions....
|
|
case GDScriptTokenizer::TK_CF_PASS: {
|
|
|
|
tokenizer->advance(1);
|
|
} break;
|
|
*/
|
|
case GDScriptTokenizer::TK_PR_STATIC: {
|
|
tokenizer->advance();
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) {
|
|
_set_error("Expected \"func\".");
|
|
return;
|
|
}
|
|
|
|
FALLTHROUGH;
|
|
}
|
|
case GDScriptTokenizer::TK_PR_FUNCTION: {
|
|
bool _static = false;
|
|
pending_newline = -1;
|
|
|
|
if (tokenizer->get_token(-1) == GDScriptTokenizer::TK_PR_STATIC) {
|
|
_static = true;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
StringName name;
|
|
|
|
if (_get_completable_identifier(COMPLETION_VIRTUAL_FUNC, name)) {
|
|
}
|
|
|
|
if (name == StringName()) {
|
|
_set_error("Expected an identifier after \"func\" (syntax: \"func <identifier>([arguments]):\").");
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < p_class->functions.size(); i++) {
|
|
if (p_class->functions[i]->name == name) {
|
|
_set_error("The function \"" + String(name) + "\" already exists in this class (at line " + itos(p_class->functions[i]->line) + ").");
|
|
}
|
|
}
|
|
for (int i = 0; i < p_class->static_functions.size(); i++) {
|
|
if (p_class->static_functions[i]->name == name) {
|
|
_set_error("The function \"" + String(name) + "\" already exists in this class (at line " + itos(p_class->static_functions[i]->line) + ").");
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (p_class->constant_expressions.has(name)) {
|
|
_add_warning(GDScriptWarning::FUNCTION_CONFLICTS_CONSTANT, -1, name);
|
|
}
|
|
for (int i = 0; i < p_class->variables.size(); i++) {
|
|
if (p_class->variables[i].identifier == name) {
|
|
_add_warning(GDScriptWarning::FUNCTION_CONFLICTS_VARIABLE, -1, name);
|
|
}
|
|
}
|
|
for (int i = 0; i < p_class->subclasses.size(); i++) {
|
|
if (p_class->subclasses[i]->name == name) {
|
|
_add_warning(GDScriptWarning::FUNCTION_CONFLICTS_CONSTANT, -1, name);
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
|
|
_set_error("Expected \"(\" after the identifier (syntax: \"func <identifier>([arguments]):\" ).");
|
|
return;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
Vector<StringName> arguments;
|
|
Vector<DataType> argument_types;
|
|
Vector<Node *> default_values;
|
|
#ifdef DEBUG_ENABLED
|
|
Vector<int> arguments_usage;
|
|
#endif // DEBUG_ENABLED
|
|
|
|
int fnline = tokenizer->get_token_line();
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
//has arguments
|
|
bool defaulting = false;
|
|
while (true) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance();
|
|
continue;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_VAR) {
|
|
tokenizer->advance(); //var before the identifier is allowed
|
|
}
|
|
|
|
if (!tokenizer->is_token_literal(0, true)) {
|
|
_set_error("Expected an identifier for an argument.");
|
|
return;
|
|
}
|
|
|
|
StringName argname = tokenizer->get_token_identifier();
|
|
for (int i = 0; i < arguments.size(); i++) {
|
|
if (arguments[i] == argname) {
|
|
_set_error("The argument name \"" + String(argname) + "\" is defined multiple times.");
|
|
return;
|
|
}
|
|
}
|
|
arguments.push_back(argname);
|
|
#ifdef DEBUG_ENABLED
|
|
arguments_usage.push_back(0);
|
|
#endif // DEBUG_ENABLED
|
|
|
|
tokenizer->advance();
|
|
|
|
DataType argtype;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) {
|
|
if (tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
argtype.infer_type = true;
|
|
tokenizer->advance();
|
|
} else if (!_parse_type(argtype)) {
|
|
_set_error("Expected a type for an argument.");
|
|
return;
|
|
}
|
|
}
|
|
argument_types.push_back(argtype);
|
|
|
|
if (defaulting && tokenizer->get_token() != GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
_set_error("Default parameter expected.");
|
|
return;
|
|
}
|
|
|
|
//tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
defaulting = true;
|
|
tokenizer->advance(1);
|
|
Node *defval = _parse_and_reduce_expression(p_class, _static);
|
|
if (!defval || error_set) {
|
|
return;
|
|
}
|
|
|
|
OperatorNode *on = alloc_node<OperatorNode>();
|
|
on->op = OperatorNode::OP_ASSIGN;
|
|
on->line = fnline;
|
|
|
|
IdentifierNode *in = alloc_node<IdentifierNode>();
|
|
in->name = argname;
|
|
in->line = fnline;
|
|
|
|
on->arguments.push_back(in);
|
|
on->arguments.push_back(defval);
|
|
/* no ..
|
|
if (defval->type!=Node::TYPE_CONSTANT) {
|
|
|
|
_set_error("default argument must be constant");
|
|
}
|
|
*/
|
|
default_values.push_back(on);
|
|
}
|
|
|
|
while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance();
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance();
|
|
continue;
|
|
} else if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \",\" or \")\".");
|
|
return;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
BlockNode *block = alloc_node<BlockNode>();
|
|
block->parent_class = p_class;
|
|
|
|
FunctionNode *function = alloc_node<FunctionNode>();
|
|
function->name = name;
|
|
function->arguments = arguments;
|
|
function->argument_types = argument_types;
|
|
function->default_values = default_values;
|
|
function->_static = _static;
|
|
function->line = fnline;
|
|
#ifdef DEBUG_ENABLED
|
|
function->arguments_usage = arguments_usage;
|
|
#endif // DEBUG_ENABLED
|
|
function->rpc_mode = rpc_mode;
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_DISABLED;
|
|
|
|
if (name == "_init") {
|
|
if (_static) {
|
|
_set_error("The constructor cannot be static.");
|
|
return;
|
|
}
|
|
|
|
if (p_class->extends_used) {
|
|
OperatorNode *cparent = alloc_node<OperatorNode>();
|
|
cparent->op = OperatorNode::OP_PARENT_CALL;
|
|
block->statements.push_back(cparent);
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = "_init";
|
|
cparent->arguments.push_back(id);
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PERIOD) {
|
|
tokenizer->advance();
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
|
|
_set_error("Expected \"(\" for parent constructor arguments.");
|
|
return;
|
|
}
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
//has arguments
|
|
parenthesis++;
|
|
while (true) {
|
|
current_function = function;
|
|
Node *arg = _parse_and_reduce_expression(p_class, _static);
|
|
if (!arg) {
|
|
return;
|
|
}
|
|
current_function = nullptr;
|
|
cparent->arguments.push_back(arg);
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance();
|
|
continue;
|
|
} else if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \",\" or \")\".");
|
|
return;
|
|
}
|
|
|
|
break;
|
|
}
|
|
parenthesis--;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
}
|
|
} else {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PERIOD) {
|
|
_set_error("Parent constructor call found for a class without inheritance.");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
DataType return_type;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_FORWARD_ARROW) {
|
|
if (!_parse_type(return_type, true)) {
|
|
_set_error("Expected a return type for the function.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!_enter_indent_block(block)) {
|
|
_set_error(vformat("Indented block expected after declaration of \"%s\" function.", function->name));
|
|
return;
|
|
}
|
|
|
|
function->return_type = return_type;
|
|
|
|
if (_static) {
|
|
p_class->static_functions.push_back(function);
|
|
} else {
|
|
p_class->functions.push_back(function);
|
|
}
|
|
|
|
current_function = function;
|
|
function->body = block;
|
|
current_block = block;
|
|
_parse_block(block, _static);
|
|
current_block = nullptr;
|
|
|
|
//arguments
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_SIGNAL: {
|
|
_mark_line_as_safe(tokenizer->get_token_line());
|
|
tokenizer->advance();
|
|
|
|
if (!tokenizer->is_token_literal()) {
|
|
_set_error("Expected an identifier after \"signal\".");
|
|
return;
|
|
}
|
|
|
|
ClassNode::Signal sig;
|
|
sig.name = tokenizer->get_token_identifier();
|
|
sig.emissions = 0;
|
|
sig.line = tokenizer->get_token_line();
|
|
|
|
for (int i = 0; i < current_class->_signals.size(); i++) {
|
|
if (current_class->_signals[i].name == sig.name) {
|
|
_set_error("The signal \"" + sig.name + "\" already exists in this class (at line: " + itos(current_class->_signals[i].line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
|
|
tokenizer->advance();
|
|
while (true) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance();
|
|
continue;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
tokenizer->advance();
|
|
break;
|
|
}
|
|
|
|
if (!tokenizer->is_token_literal(0, true)) {
|
|
_set_error("Expected an identifier in a \"signal\" argument.");
|
|
return;
|
|
}
|
|
|
|
sig.arguments.push_back(tokenizer->get_token_identifier());
|
|
tokenizer->advance();
|
|
|
|
while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance();
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance();
|
|
} else if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \",\" or \")\" after a \"signal\" parameter identifier.");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
p_class->_signals.push_back(sig);
|
|
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("signal");
|
|
return;
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_EXPORT: {
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
|
|
#define _ADVANCE_AND_CONSUME_NEWLINES \
|
|
do { \
|
|
tokenizer->advance(); \
|
|
} while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE)
|
|
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
parenthesis++;
|
|
|
|
String hint_prefix = "";
|
|
bool is_arrayed = false;
|
|
|
|
while (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_TYPE &&
|
|
tokenizer->get_token_type() == Variant::ARRAY &&
|
|
tokenizer->get_token(1) == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance(); // Array
|
|
tokenizer->advance(); // Comma
|
|
if (is_arrayed) {
|
|
hint_prefix += itos(Variant::ARRAY) + ":";
|
|
} else {
|
|
is_arrayed = true;
|
|
}
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_TYPE) {
|
|
Variant::Type type = tokenizer->get_token_type();
|
|
if (type == Variant::NIL) {
|
|
_set_error("Can't export null type.");
|
|
return;
|
|
}
|
|
if (type == Variant::OBJECT) {
|
|
_set_error("Can't export raw object type.");
|
|
return;
|
|
}
|
|
current_export.type = type;
|
|
current_export.usage |= PROPERTY_USAGE_SCRIPT_VARIABLE;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
// hint expected next!
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
switch (type) {
|
|
case Variant::INT: {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "FLAGS") {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
WARN_DEPRECATED_MSG("Exporting bit flags hint requires string constants.");
|
|
break;
|
|
}
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
_set_error("Expected \",\" in the bit flags hint.");
|
|
return;
|
|
}
|
|
|
|
current_export.hint = PROPERTY_HINT_FLAGS;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
bool first = true;
|
|
while (true) {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || tokenizer->get_token_constant().get_type() != Variant::STRING) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected a string constant in the named bit flags hint.");
|
|
return;
|
|
}
|
|
|
|
String c = tokenizer->get_token_constant();
|
|
if (!first) {
|
|
current_export.hint_string += ",";
|
|
} else {
|
|
first = false;
|
|
}
|
|
|
|
current_export.hint_string += c.xml_escape();
|
|
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected \")\" or \",\" in the named bit flags hint.");
|
|
return;
|
|
}
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "LAYERS_2D_RENDER") {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" in the layers 2D render hint.");
|
|
return;
|
|
}
|
|
current_export.hint = PROPERTY_HINT_LAYERS_2D_RENDER;
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "LAYERS_2D_PHYSICS") {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" in the layers 2D physics hint.");
|
|
return;
|
|
}
|
|
current_export.hint = PROPERTY_HINT_LAYERS_2D_PHYSICS;
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "LAYERS_3D_RENDER") {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" in the layers 3D render hint.");
|
|
return;
|
|
}
|
|
current_export.hint = PROPERTY_HINT_LAYERS_3D_RENDER;
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "LAYERS_3D_PHYSICS") {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" in the layers 3D physics hint.");
|
|
return;
|
|
}
|
|
current_export.hint = PROPERTY_HINT_LAYERS_3D_PHYSICS;
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT && tokenizer->get_token_constant().get_type() == Variant::STRING) {
|
|
//enumeration
|
|
current_export.hint = PROPERTY_HINT_ENUM;
|
|
bool first = true;
|
|
while (true) {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || tokenizer->get_token_constant().get_type() != Variant::STRING) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected a string constant in the enumeration hint.");
|
|
return;
|
|
}
|
|
|
|
String c = tokenizer->get_token_constant();
|
|
if (!first) {
|
|
current_export.hint_string += ",";
|
|
} else {
|
|
first = false;
|
|
}
|
|
|
|
current_export.hint_string += c.xml_escape();
|
|
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected \")\" or \",\" in the enumeration hint.");
|
|
return;
|
|
}
|
|
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
FALLTHROUGH;
|
|
}
|
|
case Variant::REAL: {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "EASE") {
|
|
current_export.hint = PROPERTY_HINT_EXP_EASING;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" in the hint.");
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
|
|
// range
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "EXP") {
|
|
current_export.hint = PROPERTY_HINT_EXP_RANGE;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
break;
|
|
} else if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
_set_error("Expected \")\" or \",\" in the exponential range hint.");
|
|
return;
|
|
}
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
} else {
|
|
current_export.hint = PROPERTY_HINT_RANGE;
|
|
}
|
|
|
|
float sign = 1.0;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_SUB) {
|
|
sign = -1;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
}
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || !tokenizer->get_token_constant().is_num()) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected a range in the numeric hint.");
|
|
return;
|
|
}
|
|
|
|
current_export.hint_string = rtos(sign * double(tokenizer->get_token_constant()));
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
current_export.hint_string = "0," + current_export.hint_string;
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected \",\" or \")\" in the numeric range hint.");
|
|
return;
|
|
}
|
|
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
sign = 1.0;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_SUB) {
|
|
sign = -1;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || !tokenizer->get_token_constant().is_num()) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected a number as upper bound in the numeric range hint.");
|
|
return;
|
|
}
|
|
|
|
current_export.hint_string += "," + rtos(sign * double(tokenizer->get_token_constant()));
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected \",\" or \")\" in the numeric range hint.");
|
|
return;
|
|
}
|
|
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
sign = 1.0;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_SUB) {
|
|
sign = -1;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || !tokenizer->get_token_constant().is_num()) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected a number as step in the numeric range hint.");
|
|
return;
|
|
}
|
|
|
|
current_export.hint_string += "," + rtos(sign * double(tokenizer->get_token_constant()));
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
} break;
|
|
case Variant::STRING: {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT && tokenizer->get_token_constant().get_type() == Variant::STRING) {
|
|
//enumeration
|
|
current_export.hint = PROPERTY_HINT_ENUM;
|
|
bool first = true;
|
|
while (true) {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || tokenizer->get_token_constant().get_type() != Variant::STRING) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected a string constant in the enumeration hint.");
|
|
return;
|
|
}
|
|
|
|
String c = tokenizer->get_token_constant();
|
|
if (!first) {
|
|
current_export.hint_string += ",";
|
|
} else {
|
|
first = false;
|
|
}
|
|
|
|
current_export.hint_string += c.xml_escape();
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected \")\" or \",\" in the enumeration hint.");
|
|
return;
|
|
}
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "DIR") {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
current_export.hint = PROPERTY_HINT_DIR;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_IDENTIFIER || !(tokenizer->get_token_identifier() == "GLOBAL")) {
|
|
_set_error("Expected \"GLOBAL\" after comma in the directory hint.");
|
|
return;
|
|
}
|
|
if (!p_class->tool) {
|
|
_set_error("Global filesystem hints may only be used in tool scripts.");
|
|
return;
|
|
}
|
|
current_export.hint = PROPERTY_HINT_GLOBAL_DIR;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" in the hint.");
|
|
return;
|
|
}
|
|
} else {
|
|
_set_error("Expected \")\" or \",\" in the hint.");
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "FILE") {
|
|
current_export.hint = PROPERTY_HINT_FILE;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "GLOBAL") {
|
|
if (!p_class->tool) {
|
|
_set_error("Global filesystem hints may only be used in tool scripts.");
|
|
return;
|
|
}
|
|
current_export.hint = PROPERTY_HINT_GLOBAL_FILE;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
break;
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
} else {
|
|
_set_error("Expected \")\" or \",\" in the hint.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || tokenizer->get_token_constant().get_type() != Variant::STRING) {
|
|
if (current_export.hint == PROPERTY_HINT_GLOBAL_FILE) {
|
|
_set_error("Expected string constant with filter.");
|
|
} else {
|
|
_set_error("Expected \"GLOBAL\" or string constant with filter.");
|
|
}
|
|
return;
|
|
}
|
|
current_export.hint_string = tokenizer->get_token_constant();
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" in the hint.");
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "MULTILINE") {
|
|
current_export.hint = PROPERTY_HINT_MULTILINE_TEXT;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
_set_error("Expected \")\" in the hint.");
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
} break;
|
|
case Variant::COLOR: {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_IDENTIFIER) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Color type hint expects RGB or RGBA as hints.");
|
|
return;
|
|
}
|
|
|
|
String identifier = tokenizer->get_token_identifier();
|
|
if (identifier == "RGB") {
|
|
current_export.hint = PROPERTY_HINT_COLOR_NO_ALPHA;
|
|
} else if (identifier == "RGBA") {
|
|
//none
|
|
} else {
|
|
current_export = PropertyInfo();
|
|
_set_error("Color type hint expects RGB or RGBA as hints.");
|
|
return;
|
|
}
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
} break;
|
|
default: {
|
|
current_export = PropertyInfo();
|
|
_set_error("Type \"" + Variant::get_type_name(type) + "\" can't take hints.");
|
|
return;
|
|
} break;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
parenthesis++;
|
|
Node *subexpr = _parse_and_reduce_expression(p_class, true, true);
|
|
if (!subexpr) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
parenthesis--;
|
|
|
|
if (subexpr->type != Node::TYPE_CONSTANT) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected a constant expression.");
|
|
return;
|
|
}
|
|
|
|
Variant constant = static_cast<ConstantNode *>(subexpr)->value;
|
|
|
|
if (constant.get_type() == Variant::OBJECT) {
|
|
GDScriptNativeClass *native_class = Object::cast_to<GDScriptNativeClass>(constant);
|
|
|
|
if (native_class && ClassDB::is_parent_class(native_class->get_name(), "Resource")) {
|
|
current_export.type = Variant::OBJECT;
|
|
current_export.hint = PROPERTY_HINT_RESOURCE_TYPE;
|
|
current_export.usage |= PROPERTY_USAGE_SCRIPT_VARIABLE;
|
|
|
|
current_export.hint_string = native_class->get_name();
|
|
current_export.class_name = native_class->get_name();
|
|
|
|
} else {
|
|
current_export = PropertyInfo();
|
|
_set_error("The export hint isn't a resource type.");
|
|
}
|
|
} else if (constant.get_type() == Variant::DICTIONARY) {
|
|
// Enumeration
|
|
bool is_flags = false;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "FLAGS") {
|
|
is_flags = true;
|
|
_ADVANCE_AND_CONSUME_NEWLINES;
|
|
} else {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected \"FLAGS\" after comma.");
|
|
}
|
|
}
|
|
|
|
current_export.type = Variant::INT;
|
|
current_export.hint = is_flags ? PROPERTY_HINT_FLAGS : PROPERTY_HINT_ENUM;
|
|
current_export.usage |= PROPERTY_USAGE_SCRIPT_VARIABLE;
|
|
Dictionary enum_values = constant;
|
|
|
|
List<Variant> keys;
|
|
enum_values.get_key_list(&keys);
|
|
|
|
bool first = true;
|
|
for (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
|
|
if (enum_values[E->get()].get_type() == Variant::INT) {
|
|
if (!first) {
|
|
current_export.hint_string += ",";
|
|
} else {
|
|
first = false;
|
|
}
|
|
|
|
current_export.hint_string += E->get().operator String().capitalize().xml_escape();
|
|
if (!is_flags) {
|
|
current_export.hint_string += ":";
|
|
current_export.hint_string += enum_values[E->get()].operator String().xml_escape();
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected type for export.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected \")\" or \",\" after the export hint.");
|
|
return;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
parenthesis--;
|
|
|
|
if (is_arrayed) {
|
|
hint_prefix += itos(current_export.type);
|
|
if (current_export.hint) {
|
|
hint_prefix += "/" + itos(current_export.hint);
|
|
}
|
|
current_export.hint_string = hint_prefix + ":" + current_export.hint_string;
|
|
current_export.hint = PROPERTY_HINT_TYPE_STRING;
|
|
current_export.type = Variant::ARRAY;
|
|
}
|
|
#undef _ADVANCE_AND_CONSUME_NEWLINES
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_ONREADY && tokenizer->get_token() != GDScriptTokenizer::TK_PR_REMOTE && tokenizer->get_token() != GDScriptTokenizer::TK_PR_MASTER && tokenizer->get_token() != GDScriptTokenizer::TK_PR_PUPPET && tokenizer->get_token() != GDScriptTokenizer::TK_PR_SYNC && tokenizer->get_token() != GDScriptTokenizer::TK_PR_REMOTESYNC && tokenizer->get_token() != GDScriptTokenizer::TK_PR_MASTERSYNC && tokenizer->get_token() != GDScriptTokenizer::TK_PR_PUPPETSYNC && tokenizer->get_token() != GDScriptTokenizer::TK_PR_SLAVE) {
|
|
current_export = PropertyInfo();
|
|
_set_error("Expected \"var\", \"onready\", \"remote\", \"master\", \"puppet\", \"sync\", \"remotesync\", \"mastersync\", \"puppetsync\".");
|
|
return;
|
|
}
|
|
|
|
continue;
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_ONREADY: {
|
|
//may be fallthrough from export, ignore if so
|
|
tokenizer->advance();
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR) {
|
|
_set_error("Expected \"var\".");
|
|
return;
|
|
}
|
|
|
|
continue;
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_REMOTE: {
|
|
//may be fallthrough from export, ignore if so
|
|
tokenizer->advance();
|
|
if (current_export.type) {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR) {
|
|
_set_error("Expected \"var\".");
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) {
|
|
_set_error("Expected \"var\" or \"func\".");
|
|
return;
|
|
}
|
|
}
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_REMOTE;
|
|
|
|
continue;
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_MASTER: {
|
|
//may be fallthrough from export, ignore if so
|
|
tokenizer->advance();
|
|
if (current_export.type) {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR) {
|
|
_set_error("Expected \"var\".");
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) {
|
|
_set_error("Expected \"var\" or \"func\".");
|
|
return;
|
|
}
|
|
}
|
|
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_MASTER;
|
|
continue;
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_SLAVE:
|
|
#ifdef DEBUG_ENABLED
|
|
_add_warning(GDScriptWarning::DEPRECATED_KEYWORD, tokenizer->get_token_line(), "slave", "puppet");
|
|
#endif
|
|
FALLTHROUGH;
|
|
case GDScriptTokenizer::TK_PR_PUPPET: {
|
|
//may be fallthrough from export, ignore if so
|
|
tokenizer->advance();
|
|
if (current_export.type) {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR) {
|
|
_set_error("Expected \"var\".");
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) {
|
|
_set_error("Expected \"var\" or \"func\".");
|
|
return;
|
|
}
|
|
}
|
|
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_PUPPET;
|
|
continue;
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_REMOTESYNC:
|
|
case GDScriptTokenizer::TK_PR_SYNC: {
|
|
//may be fallthrough from export, ignore if so
|
|
tokenizer->advance();
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) {
|
|
if (current_export.type) {
|
|
_set_error("Expected \"var\".");
|
|
} else {
|
|
_set_error("Expected \"var\" or \"func\".");
|
|
}
|
|
return;
|
|
}
|
|
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_REMOTESYNC;
|
|
continue;
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_MASTERSYNC: {
|
|
//may be fallthrough from export, ignore if so
|
|
tokenizer->advance();
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) {
|
|
if (current_export.type) {
|
|
_set_error("Expected \"var\".");
|
|
} else {
|
|
_set_error("Expected \"var\" or \"func\".");
|
|
}
|
|
return;
|
|
}
|
|
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_MASTERSYNC;
|
|
continue;
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_PUPPETSYNC: {
|
|
//may be fallthrough from export, ignore if so
|
|
tokenizer->advance();
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) {
|
|
if (current_export.type) {
|
|
_set_error("Expected \"var\".");
|
|
} else {
|
|
_set_error("Expected \"var\" or \"func\".");
|
|
}
|
|
return;
|
|
}
|
|
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_PUPPETSYNC;
|
|
continue;
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_VAR: {
|
|
// variable declaration and (eventual) initialization
|
|
|
|
ClassNode::Member member;
|
|
|
|
bool autoexport = tokenizer->get_token(-1) == GDScriptTokenizer::TK_PR_EXPORT;
|
|
if (current_export.type != Variant::NIL) {
|
|
member._export = current_export;
|
|
current_export = PropertyInfo();
|
|
}
|
|
|
|
bool onready = tokenizer->get_token(-1) == GDScriptTokenizer::TK_PR_ONREADY;
|
|
|
|
tokenizer->advance();
|
|
if (!tokenizer->is_token_literal(0, true)) {
|
|
_set_error("Expected an identifier for the member variable name.");
|
|
return;
|
|
}
|
|
|
|
member.identifier = tokenizer->get_token_literal();
|
|
member.expression = nullptr;
|
|
member._export.name = member.identifier;
|
|
member.line = tokenizer->get_token_line();
|
|
member.usages = 0;
|
|
member.rpc_mode = rpc_mode;
|
|
|
|
if (current_class->constant_expressions.has(member.identifier)) {
|
|
_set_error("A constant named \"" + String(member.identifier) + "\" already exists in this class (at line: " +
|
|
itos(current_class->constant_expressions[member.identifier].expression->line) + ").");
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < current_class->variables.size(); i++) {
|
|
if (current_class->variables[i].identifier == member.identifier) {
|
|
_set_error("Variable \"" + String(member.identifier) + "\" already exists in this class (at line: " +
|
|
itos(current_class->variables[i].line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < current_class->subclasses.size(); i++) {
|
|
if (current_class->subclasses[i]->name == member.identifier) {
|
|
_set_error("A class named \"" + String(member.identifier) + "\" already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
#ifdef DEBUG_ENABLED
|
|
for (int i = 0; i < current_class->functions.size(); i++) {
|
|
if (current_class->functions[i]->name == member.identifier) {
|
|
_add_warning(GDScriptWarning::VARIABLE_CONFLICTS_FUNCTION, member.line, member.identifier);
|
|
break;
|
|
}
|
|
}
|
|
for (int i = 0; i < current_class->static_functions.size(); i++) {
|
|
if (current_class->static_functions[i]->name == member.identifier) {
|
|
_add_warning(GDScriptWarning::VARIABLE_CONFLICTS_FUNCTION, member.line, member.identifier);
|
|
break;
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
tokenizer->advance();
|
|
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_DISABLED;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) {
|
|
if (tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
member.data_type = DataType();
|
|
#ifdef DEBUG_ENABLED
|
|
member.data_type.infer_type = true;
|
|
#endif
|
|
tokenizer->advance();
|
|
} else if (!_parse_type(member.data_type)) {
|
|
_set_error("Expected a type for the class variable.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (autoexport && member.data_type.has_type) {
|
|
if (member.data_type.kind == DataType::BUILTIN) {
|
|
member._export.type = member.data_type.builtin_type;
|
|
} else if (member.data_type.kind == DataType::NATIVE) {
|
|
if (ClassDB::is_parent_class(member.data_type.native_type, "Resource")) {
|
|
member._export.type = Variant::OBJECT;
|
|
member._export.hint = PROPERTY_HINT_RESOURCE_TYPE;
|
|
member._export.usage |= PROPERTY_USAGE_SCRIPT_VARIABLE;
|
|
member._export.hint_string = member.data_type.native_type;
|
|
member._export.class_name = member.data_type.native_type;
|
|
} else {
|
|
_set_error("Invalid export type. Only built-in and native resource types can be exported.", member.line);
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
_set_error("Invalid export type. Only built-in and native resource types can be exported.", member.line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
Variant::CallError ce;
|
|
member.default_value = Variant::construct(member._export.type, nullptr, 0, ce);
|
|
#endif
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
#ifdef DEBUG_ENABLED
|
|
int line = tokenizer->get_token_line();
|
|
#endif
|
|
tokenizer->advance();
|
|
|
|
Node *subexpr = _parse_and_reduce_expression(p_class, false, autoexport || member._export.type != Variant::NIL);
|
|
if (!subexpr) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
//discourage common error
|
|
if (!onready && subexpr->type == Node::TYPE_OPERATOR) {
|
|
OperatorNode *op = static_cast<OperatorNode *>(subexpr);
|
|
if (op->op == OperatorNode::OP_CALL && op->arguments[0]->type == Node::TYPE_SELF && op->arguments[1]->type == Node::TYPE_IDENTIFIER) {
|
|
IdentifierNode *id = static_cast<IdentifierNode *>(op->arguments[1]);
|
|
if (id->name == "get_node") {
|
|
_set_error("Use \"onready var " + String(member.identifier) + " = get_node(...)\" instead.");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
member.expression = subexpr;
|
|
|
|
if (autoexport && !member.data_type.has_type) {
|
|
if (subexpr->type != Node::TYPE_CONSTANT) {
|
|
_set_error("Type-less export needs a constant expression assigned to infer type.");
|
|
return;
|
|
}
|
|
|
|
ConstantNode *cn = static_cast<ConstantNode *>(subexpr);
|
|
if (cn->value.get_type() == Variant::NIL) {
|
|
_set_error("Can't accept a null constant expression for inferring export type.");
|
|
return;
|
|
}
|
|
|
|
if (!_reduce_export_var_type(cn->value, member.line)) {
|
|
return;
|
|
}
|
|
|
|
member._export.type = cn->value.get_type();
|
|
member._export.usage |= PROPERTY_USAGE_SCRIPT_VARIABLE;
|
|
if (cn->value.get_type() == Variant::OBJECT) {
|
|
Object *obj = cn->value;
|
|
Resource *res = Object::cast_to<Resource>(obj);
|
|
if (res == nullptr) {
|
|
_set_error("The exported constant isn't a type or resource.");
|
|
return;
|
|
}
|
|
member._export.hint = PROPERTY_HINT_RESOURCE_TYPE;
|
|
member._export.hint_string = res->get_class();
|
|
}
|
|
}
|
|
#ifdef TOOLS_ENABLED
|
|
if (subexpr->type == Node::TYPE_CONSTANT && (member._export.type != Variant::NIL || member.data_type.has_type)) {
|
|
ConstantNode *cn = static_cast<ConstantNode *>(subexpr);
|
|
if (cn->value.get_type() != Variant::NIL) {
|
|
if (member._export.type != Variant::NIL && cn->value.get_type() != member._export.type) {
|
|
if (Variant::can_convert(cn->value.get_type(), member._export.type)) {
|
|
Variant::CallError err;
|
|
const Variant *args = &cn->value;
|
|
cn->value = Variant::construct(member._export.type, &args, 1, err);
|
|
} else {
|
|
_set_error("Can't convert the provided value to the export type.");
|
|
return;
|
|
}
|
|
}
|
|
member.default_value = cn->value;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = member.identifier;
|
|
id->datatype = member.data_type;
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_INIT_ASSIGN;
|
|
op->arguments.push_back(id);
|
|
op->arguments.push_back(subexpr);
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
NewLineNode *nl2 = alloc_node<NewLineNode>();
|
|
nl2->line = line;
|
|
if (onready) {
|
|
p_class->ready->statements.push_back(nl2);
|
|
} else {
|
|
p_class->initializer->statements.push_back(nl2);
|
|
}
|
|
#endif
|
|
if (onready) {
|
|
p_class->ready->statements.push_back(op);
|
|
} else {
|
|
p_class->initializer->statements.push_back(op);
|
|
}
|
|
|
|
member.initial_assignment = op;
|
|
|
|
} else {
|
|
if (autoexport && !member.data_type.has_type) {
|
|
_set_error("Type-less export needs a constant expression assigned to infer type.");
|
|
return;
|
|
}
|
|
|
|
Node *expr;
|
|
|
|
if (member.data_type.has_type) {
|
|
expr = _get_default_value_for_type(member.data_type);
|
|
} else {
|
|
DataType exported_type;
|
|
exported_type.has_type = true;
|
|
exported_type.kind = DataType::BUILTIN;
|
|
exported_type.builtin_type = member._export.type;
|
|
expr = _get_default_value_for_type(exported_type);
|
|
}
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = member.identifier;
|
|
id->datatype = member.data_type;
|
|
|
|
OperatorNode *op = alloc_node<OperatorNode>();
|
|
op->op = OperatorNode::OP_INIT_ASSIGN;
|
|
op->arguments.push_back(id);
|
|
op->arguments.push_back(expr);
|
|
|
|
p_class->initializer->statements.push_back(op);
|
|
|
|
member.initial_assignment = op;
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_SETGET) {
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) {
|
|
//just comma means using only getter
|
|
if (!tokenizer->is_token_literal()) {
|
|
_set_error("Expected an identifier for the setter function after \"setget\".");
|
|
}
|
|
|
|
member.setter = tokenizer->get_token_literal();
|
|
|
|
tokenizer->advance();
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
//there is a getter
|
|
tokenizer->advance();
|
|
|
|
if (!tokenizer->is_token_literal()) {
|
|
_set_error("Expected an identifier for the getter function after \",\".");
|
|
}
|
|
|
|
member.getter = tokenizer->get_token_literal();
|
|
tokenizer->advance();
|
|
}
|
|
}
|
|
|
|
p_class->variables.push_back(member);
|
|
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("var");
|
|
return;
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_CONST: {
|
|
// constant declaration and initialization
|
|
|
|
ClassNode::Constant constant;
|
|
|
|
tokenizer->advance();
|
|
if (!tokenizer->is_token_literal(0, true)) {
|
|
_set_error("Expected an identifier for the constant.");
|
|
return;
|
|
}
|
|
|
|
StringName const_id = tokenizer->get_token_literal();
|
|
int line = tokenizer->get_token_line();
|
|
|
|
if (current_class->constant_expressions.has(const_id)) {
|
|
_set_error("Constant \"" + String(const_id) + "\" already exists in this class (at line " +
|
|
itos(current_class->constant_expressions[const_id].expression->line) + ").");
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < current_class->variables.size(); i++) {
|
|
if (current_class->variables[i].identifier == const_id) {
|
|
_set_error("A variable named \"" + String(const_id) + "\" already exists in this class (at line " +
|
|
itos(current_class->variables[i].line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < current_class->subclasses.size(); i++) {
|
|
if (current_class->subclasses[i]->name == const_id) {
|
|
_set_error("A class named \"" + String(const_id) + "\" already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) {
|
|
if (tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
constant.type = DataType();
|
|
#ifdef DEBUG_ENABLED
|
|
constant.type.infer_type = true;
|
|
#endif
|
|
tokenizer->advance();
|
|
} else if (!_parse_type(constant.type)) {
|
|
_set_error("Expected a type for the class constant.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
_set_error("Constants must be assigned immediately.");
|
|
return;
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
Node *subexpr = _parse_and_reduce_expression(p_class, true, true);
|
|
if (!subexpr) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (subexpr->type != Node::TYPE_CONSTANT) {
|
|
_set_error("Expected a constant expression.", line);
|
|
return;
|
|
}
|
|
subexpr->line = line;
|
|
constant.expression = subexpr;
|
|
|
|
p_class->constant_expressions.insert(const_id, constant);
|
|
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("const");
|
|
return;
|
|
}
|
|
|
|
} break;
|
|
case GDScriptTokenizer::TK_PR_ENUM: {
|
|
//multiple constant declarations..
|
|
|
|
int last_assign = -1; // Incremented by 1 right before the assignment.
|
|
String enum_name;
|
|
Dictionary enum_dict;
|
|
int enum_start_line = tokenizer->get_token_line();
|
|
|
|
tokenizer->advance();
|
|
if (tokenizer->is_token_literal(0, true)) {
|
|
enum_name = tokenizer->get_token_literal();
|
|
|
|
if (current_class->constant_expressions.has(enum_name)) {
|
|
_set_error("A constant named \"" + String(enum_name) + "\" already exists in this class (at line " +
|
|
itos(current_class->constant_expressions[enum_name].expression->line) + ").");
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < current_class->variables.size(); i++) {
|
|
if (current_class->variables[i].identifier == enum_name) {
|
|
_set_error("A variable named \"" + String(enum_name) + "\" already exists in this class (at line " +
|
|
itos(current_class->variables[i].line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < current_class->subclasses.size(); i++) {
|
|
if (current_class->subclasses[i]->name == enum_name) {
|
|
_set_error("A class named \"" + String(enum_name) + "\" already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
tokenizer->advance();
|
|
}
|
|
if (tokenizer->get_token() != GDScriptTokenizer::TK_CURLY_BRACKET_OPEN) {
|
|
_set_error("Expected \"{\" in the enum declaration.");
|
|
return;
|
|
}
|
|
tokenizer->advance();
|
|
|
|
while (true) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) {
|
|
tokenizer->advance(); // Ignore newlines
|
|
} else if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) {
|
|
tokenizer->advance();
|
|
break; // End of enum
|
|
} else if (!tokenizer->is_token_literal(0, true)) {
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_EOF) {
|
|
_set_error("Unexpected end of file.");
|
|
} else {
|
|
_set_error(String("Unexpected ") + GDScriptTokenizer::get_token_name(tokenizer->get_token()) + ", expected an identifier.");
|
|
}
|
|
|
|
return;
|
|
} else { // tokenizer->is_token_literal(0, true)
|
|
StringName const_id = tokenizer->get_token_literal();
|
|
|
|
tokenizer->advance();
|
|
|
|
ConstantNode *enum_value_expr;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_ASSIGN) {
|
|
tokenizer->advance();
|
|
|
|
Node *subexpr = _parse_and_reduce_expression(p_class, true, true);
|
|
if (!subexpr) {
|
|
if (_recover_from_completion()) {
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (subexpr->type != Node::TYPE_CONSTANT) {
|
|
_set_error("Expected a constant expression.");
|
|
return;
|
|
}
|
|
|
|
enum_value_expr = static_cast<ConstantNode *>(subexpr);
|
|
|
|
if (enum_value_expr->value.get_type() != Variant::INT) {
|
|
_set_error("Expected an integer value for \"enum\".");
|
|
return;
|
|
}
|
|
|
|
last_assign = enum_value_expr->value;
|
|
|
|
} else {
|
|
last_assign = last_assign + 1;
|
|
enum_value_expr = alloc_node<ConstantNode>();
|
|
enum_value_expr->value = last_assign;
|
|
enum_value_expr->datatype = _type_from_variant(enum_value_expr->value);
|
|
}
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) {
|
|
tokenizer->advance();
|
|
} else if (tokenizer->is_token_literal(0, true)) {
|
|
_set_error("Unexpected identifier.");
|
|
return;
|
|
}
|
|
|
|
if (enum_name != "") {
|
|
enum_dict[const_id] = enum_value_expr->value;
|
|
} else {
|
|
if (current_class->constant_expressions.has(const_id)) {
|
|
_set_error("A constant named \"" + String(const_id) + "\" already exists in this class (at line " +
|
|
itos(current_class->constant_expressions[const_id].expression->line) + ").");
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < current_class->variables.size(); i++) {
|
|
if (current_class->variables[i].identifier == const_id) {
|
|
_set_error("A variable named \"" + String(const_id) + "\" already exists in this class (at line " +
|
|
itos(current_class->variables[i].line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < current_class->subclasses.size(); i++) {
|
|
if (current_class->subclasses[i]->name == const_id) {
|
|
_set_error("A class named \"" + String(const_id) + "\" already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
|
|
return;
|
|
}
|
|
}
|
|
|
|
ClassNode::Constant constant;
|
|
constant.type.has_type = true;
|
|
constant.type.kind = DataType::BUILTIN;
|
|
constant.type.builtin_type = Variant::INT;
|
|
constant.expression = enum_value_expr;
|
|
p_class->constant_expressions.insert(const_id, constant);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (enum_name != "") {
|
|
ClassNode::Constant enum_constant;
|
|
ConstantNode *cn = alloc_node<ConstantNode>();
|
|
cn->value = enum_dict;
|
|
cn->datatype = _type_from_variant(cn->value);
|
|
cn->line = enum_start_line;
|
|
|
|
enum_constant.expression = cn;
|
|
enum_constant.type = cn->datatype;
|
|
p_class->constant_expressions.insert(enum_name, enum_constant);
|
|
}
|
|
|
|
if (!_end_statement()) {
|
|
_set_end_statement_error("enum");
|
|
return;
|
|
}
|
|
|
|
} break;
|
|
|
|
case GDScriptTokenizer::TK_CONSTANT: {
|
|
if (tokenizer->get_token_constant().get_type() == Variant::STRING) {
|
|
tokenizer->advance();
|
|
// Ignore
|
|
} else {
|
|
_set_error(String() + "Unexpected constant of type: " + Variant::get_type_name(tokenizer->get_token_constant().get_type()));
|
|
return;
|
|
}
|
|
} break;
|
|
|
|
case GDScriptTokenizer::TK_CF_PASS: {
|
|
tokenizer->advance();
|
|
} break;
|
|
|
|
default: {
|
|
if (token == GDScriptTokenizer::TK_IDENTIFIER) {
|
|
completion_type = COMPLETION_IDENTIFIER;
|
|
completion_class = current_class;
|
|
completion_function = current_function;
|
|
completion_line = tokenizer->get_token_line();
|
|
completion_block = current_block;
|
|
completion_ident_is_call = false;
|
|
completion_found = true;
|
|
}
|
|
|
|
_set_error(String() + "Unexpected token: " + tokenizer->get_token_name(tokenizer->get_token()) + ":" + tokenizer->get_token_identifier());
|
|
return;
|
|
|
|
} break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive) {
|
|
if (p_class->base_type.has_type) {
|
|
// Already determined
|
|
} else if (p_class->extends_used) {
|
|
//do inheritance
|
|
String path = p_class->extends_file;
|
|
|
|
Ref<GDScript> script;
|
|
StringName native;
|
|
ClassNode *base_class = nullptr;
|
|
|
|
if (path != "") {
|
|
//path (and optionally subclasses)
|
|
|
|
if (path.is_rel_path()) {
|
|
String base = base_path;
|
|
|
|
if (base == "" || base.is_rel_path()) {
|
|
_set_error("Couldn't resolve relative path for the parent class: " + path, p_class->line);
|
|
return;
|
|
}
|
|
path = base.plus_file(path).simplify_path();
|
|
}
|
|
script = ResourceLoader::load(path);
|
|
if (script.is_null()) {
|
|
_set_error("Couldn't load the base class: " + path, p_class->line);
|
|
return;
|
|
}
|
|
if (!script->is_valid()) {
|
|
_set_error("Script isn't fully loaded (cyclic preload?): " + path, p_class->line);
|
|
return;
|
|
}
|
|
|
|
if (p_class->extends_class.size()) {
|
|
for (int i = 0; i < p_class->extends_class.size(); i++) {
|
|
String sub = p_class->extends_class[i];
|
|
if (script->get_subclasses().has(sub)) {
|
|
Ref<Script> subclass = script->get_subclasses()[sub]; //avoid reference from disappearing
|
|
script = subclass;
|
|
} else {
|
|
_set_error("Couldn't find the subclass: " + sub, p_class->line);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
if (p_class->extends_class.size() == 0) {
|
|
_set_error("Parser bug: undecidable inheritance.", p_class->line);
|
|
ERR_FAIL();
|
|
}
|
|
//look around for the subclasses
|
|
|
|
int extend_iter = 1;
|
|
String base = p_class->extends_class[0];
|
|
ClassNode *p = p_class->owner;
|
|
Ref<GDScript> base_script;
|
|
|
|
if (ScriptServer::is_global_class(base)) {
|
|
base_script = ResourceLoader::load(ScriptServer::get_global_class_path(base));
|
|
if (!base_script.is_valid()) {
|
|
_set_error("The class \"" + base + "\" couldn't be fully loaded (script error or cyclic dependency).", p_class->line);
|
|
return;
|
|
}
|
|
p = nullptr;
|
|
} else {
|
|
List<PropertyInfo> props;
|
|
ProjectSettings::get_singleton()->get_property_list(&props);
|
|
for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
|
|
String s = E->get().name;
|
|
if (!s.begins_with("autoload/")) {
|
|
continue;
|
|
}
|
|
String name = s.get_slice("/", 1);
|
|
if (name == base) {
|
|
String singleton_path = ProjectSettings::get_singleton()->get(s);
|
|
if (singleton_path.begins_with("*")) {
|
|
singleton_path = singleton_path.right(1);
|
|
}
|
|
if (!singleton_path.begins_with("res://")) {
|
|
singleton_path = "res://" + singleton_path;
|
|
}
|
|
base_script = ResourceLoader::load(singleton_path);
|
|
if (!base_script.is_valid()) {
|
|
_set_error("Class '" + base + "' could not be fully loaded (script error or cyclic inheritance).", p_class->line);
|
|
return;
|
|
}
|
|
p = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
while (p) {
|
|
bool found = false;
|
|
|
|
for (int i = 0; i < p->subclasses.size(); i++) {
|
|
if (p->subclasses[i]->name == base) {
|
|
ClassNode *test = p->subclasses[i];
|
|
while (test) {
|
|
if (test == p_class) {
|
|
_set_error("Cyclic inheritance.", test->line);
|
|
return;
|
|
}
|
|
if (test->base_type.kind == DataType::CLASS) {
|
|
test = test->base_type.class_type;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
found = true;
|
|
if (extend_iter < p_class->extends_class.size()) {
|
|
// Keep looking at current classes if possible
|
|
base = p_class->extends_class[extend_iter++];
|
|
p = p->subclasses[i];
|
|
} else {
|
|
base_class = p->subclasses[i];
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (base_class) {
|
|
break;
|
|
}
|
|
if (found) {
|
|
continue;
|
|
}
|
|
|
|
if (p->constant_expressions.has(base)) {
|
|
if (p->constant_expressions[base].expression->type != Node::TYPE_CONSTANT) {
|
|
_set_error("Couldn't resolve the constant \"" + base + "\".", p_class->line);
|
|
return;
|
|
}
|
|
const ConstantNode *cn = static_cast<const ConstantNode *>(p->constant_expressions[base].expression);
|
|
base_script = cn->value;
|
|
if (base_script.is_null()) {
|
|
_set_error("Constant isn't a class: " + base, p_class->line);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
|
|
p = p->owner;
|
|
}
|
|
|
|
if (base_script.is_valid()) {
|
|
String ident = base;
|
|
Ref<GDScript> find_subclass = base_script;
|
|
|
|
for (int i = extend_iter; i < p_class->extends_class.size(); i++) {
|
|
String subclass = p_class->extends_class[i];
|
|
|
|
ident += ("." + subclass);
|
|
|
|
if (find_subclass->get_subclasses().has(subclass)) {
|
|
find_subclass = find_subclass->get_subclasses()[subclass];
|
|
} else if (find_subclass->get_constants().has(subclass)) {
|
|
Ref<GDScript> new_base_class = find_subclass->get_constants()[subclass];
|
|
if (new_base_class.is_null()) {
|
|
_set_error("Constant isn't a class: " + ident, p_class->line);
|
|
return;
|
|
}
|
|
find_subclass = new_base_class;
|
|
} else {
|
|
_set_error("Couldn't find the subclass: " + ident, p_class->line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
script = find_subclass;
|
|
|
|
} else if (!base_class) {
|
|
if (p_class->extends_class.size() > 1) {
|
|
_set_error("Invalid inheritance (unknown class + subclasses).", p_class->line);
|
|
return;
|
|
}
|
|
//if not found, try engine classes
|
|
if (!GDScriptLanguage::get_singleton()->get_global_map().has(base)) {
|
|
_set_error("Unknown class: \"" + base + "\"", p_class->line);
|
|
return;
|
|
}
|
|
|
|
native = base;
|
|
}
|
|
}
|
|
|
|
if (base_class) {
|
|
p_class->base_type.has_type = true;
|
|
p_class->base_type.kind = DataType::CLASS;
|
|
p_class->base_type.class_type = base_class;
|
|
} else if (script.is_valid()) {
|
|
p_class->base_type.has_type = true;
|
|
p_class->base_type.kind = DataType::GDSCRIPT;
|
|
p_class->base_type.script_type = script;
|
|
p_class->base_type.native_type = script->get_instance_base_type();
|
|
} else if (native != StringName()) {
|
|
p_class->base_type.has_type = true;
|
|
p_class->base_type.kind = DataType::NATIVE;
|
|
p_class->base_type.native_type = native;
|
|
} else {
|
|
_set_error("Couldn't determine inheritance.", p_class->line);
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
// without extends, implicitly extend Reference
|
|
p_class->base_type.has_type = true;
|
|
p_class->base_type.kind = DataType::NATIVE;
|
|
p_class->base_type.native_type = "Reference";
|
|
}
|
|
|
|
if (p_recursive) {
|
|
// Recursively determine subclasses
|
|
for (int i = 0; i < p_class->subclasses.size(); i++) {
|
|
_determine_inheritance(p_class->subclasses[i], p_recursive);
|
|
}
|
|
}
|
|
}
|
|
|
|
String GDScriptParser::DataType::to_string() const {
|
|
if (!has_type) {
|
|
return "var";
|
|
}
|
|
switch (kind) {
|
|
case BUILTIN: {
|
|
if (builtin_type == Variant::NIL) {
|
|
return "null";
|
|
}
|
|
return Variant::get_type_name(builtin_type);
|
|
} break;
|
|
case NATIVE: {
|
|
if (is_meta_type) {
|
|
return "GDScriptNativeClass";
|
|
}
|
|
return native_type.operator String();
|
|
} break;
|
|
|
|
case GDSCRIPT: {
|
|
Ref<GDScript> gds = script_type;
|
|
const String &gds_class = gds->get_script_class_name();
|
|
if (!gds_class.empty()) {
|
|
return gds_class;
|
|
}
|
|
FALLTHROUGH;
|
|
}
|
|
case SCRIPT: {
|
|
if (is_meta_type) {
|
|
return script_type->get_class_name().operator String();
|
|
}
|
|
String name = script_type->get_name();
|
|
if (name != String()) {
|
|
return name;
|
|
}
|
|
name = script_type->get_path().get_file();
|
|
if (name != String()) {
|
|
return name;
|
|
}
|
|
return native_type.operator String();
|
|
} break;
|
|
case CLASS: {
|
|
ERR_FAIL_COND_V(!class_type, String());
|
|
if (is_meta_type) {
|
|
return "GDScript";
|
|
}
|
|
if (class_type->name == StringName()) {
|
|
return "self";
|
|
}
|
|
return class_type->name.operator String();
|
|
} break;
|
|
case UNRESOLVED: {
|
|
} break;
|
|
}
|
|
|
|
return "Unresolved";
|
|
}
|
|
|
|
bool GDScriptParser::_parse_type(DataType &r_type, bool p_can_be_void) {
|
|
tokenizer->advance();
|
|
r_type.has_type = true;
|
|
|
|
bool finished = false;
|
|
bool can_index = false;
|
|
String full_name;
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
|
|
completion_cursor = StringName();
|
|
completion_type = COMPLETION_TYPE_HINT;
|
|
completion_class = current_class;
|
|
completion_function = current_function;
|
|
completion_line = tokenizer->get_token_line();
|
|
completion_argument = 0;
|
|
completion_block = current_block;
|
|
completion_found = true;
|
|
completion_ident_is_call = p_can_be_void;
|
|
tokenizer->advance();
|
|
}
|
|
|
|
switch (tokenizer->get_token()) {
|
|
case GDScriptTokenizer::TK_PR_VOID: {
|
|
if (!p_can_be_void) {
|
|
return false;
|
|
}
|
|
r_type.kind = DataType::BUILTIN;
|
|
r_type.builtin_type = Variant::NIL;
|
|
} break;
|
|
case GDScriptTokenizer::TK_BUILT_IN_TYPE: {
|
|
r_type.builtin_type = tokenizer->get_token_type();
|
|
if (tokenizer->get_token_type() == Variant::OBJECT) {
|
|
r_type.kind = DataType::NATIVE;
|
|
r_type.native_type = "Object";
|
|
} else {
|
|
r_type.kind = DataType::BUILTIN;
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::TK_IDENTIFIER: {
|
|
r_type.native_type = tokenizer->get_token_identifier();
|
|
if (ClassDB::class_exists(r_type.native_type) || ClassDB::class_exists("_" + r_type.native_type.operator String())) {
|
|
r_type.kind = DataType::NATIVE;
|
|
} else {
|
|
r_type.kind = DataType::UNRESOLVED;
|
|
can_index = true;
|
|
full_name = r_type.native_type;
|
|
}
|
|
} break;
|
|
default: {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
tokenizer->advance();
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) {
|
|
completion_cursor = r_type.native_type;
|
|
completion_type = COMPLETION_TYPE_HINT;
|
|
completion_class = current_class;
|
|
completion_function = current_function;
|
|
completion_line = tokenizer->get_token_line();
|
|
completion_argument = 0;
|
|
completion_block = current_block;
|
|
completion_found = true;
|
|
completion_ident_is_call = p_can_be_void;
|
|
tokenizer->advance();
|
|
}
|
|
|
|
if (can_index) {
|
|
while (!finished) {
|
|
switch (tokenizer->get_token()) {
|
|
case GDScriptTokenizer::TK_PERIOD: {
|
|
if (!can_index) {
|
|
_set_error("Unexpected \".\".");
|
|
return false;
|
|
}
|
|
can_index = false;
|
|
tokenizer->advance();
|
|
} break;
|
|
case GDScriptTokenizer::TK_IDENTIFIER: {
|
|
if (can_index) {
|
|
_set_error("Unexpected identifier.");
|
|
return false;
|
|
}
|
|
|
|
StringName id;
|
|
bool has_completion = _get_completable_identifier(COMPLETION_TYPE_HINT_INDEX, id);
|
|
if (id == StringName()) {
|
|
id = "@temp";
|
|
}
|
|
|
|
full_name += "." + id.operator String();
|
|
can_index = true;
|
|
if (has_completion) {
|
|
completion_cursor = full_name;
|
|
}
|
|
} break;
|
|
default: {
|
|
finished = true;
|
|
} break;
|
|
}
|
|
}
|
|
|
|
if (tokenizer->get_token(-1) == GDScriptTokenizer::TK_PERIOD) {
|
|
_set_error("Expected a subclass identifier.");
|
|
return false;
|
|
}
|
|
|
|
r_type.native_type = full_name;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::_resolve_type(const DataType &p_source, int p_line) {
|
|
if (!p_source.has_type) {
|
|
return p_source;
|
|
}
|
|
if (p_source.kind != DataType::UNRESOLVED) {
|
|
return p_source;
|
|
}
|
|
|
|
Vector<String> full_name = p_source.native_type.operator String().split(".", false);
|
|
int name_part = 0;
|
|
|
|
DataType result;
|
|
result.has_type = true;
|
|
|
|
while (name_part < full_name.size()) {
|
|
bool found = false;
|
|
StringName id = full_name[name_part];
|
|
DataType base_type = result;
|
|
|
|
ClassNode *p = nullptr;
|
|
if (name_part == 0) {
|
|
if (ScriptServer::is_global_class(id)) {
|
|
String script_path = ScriptServer::get_global_class_path(id);
|
|
if (script_path == self_path) {
|
|
result.kind = DataType::CLASS;
|
|
result.class_type = static_cast<ClassNode *>(head);
|
|
} else {
|
|
Ref<Script> script = ResourceLoader::load(script_path);
|
|
Ref<GDScript> gds = script;
|
|
if (gds.is_valid()) {
|
|
if (!gds->is_valid()) {
|
|
_set_error("The class \"" + id + "\" couldn't be fully loaded (script error or cyclic dependency).", p_line);
|
|
return DataType();
|
|
}
|
|
result.kind = DataType::GDSCRIPT;
|
|
result.script_type = gds;
|
|
} else if (script.is_valid()) {
|
|
result.kind = DataType::SCRIPT;
|
|
result.script_type = script;
|
|
} else {
|
|
_set_error("The class \"" + id + "\" was found in global scope, but its script couldn't be loaded.", p_line);
|
|
return DataType();
|
|
}
|
|
}
|
|
name_part++;
|
|
continue;
|
|
}
|
|
List<PropertyInfo> props;
|
|
ProjectSettings::get_singleton()->get_property_list(&props);
|
|
String singleton_path;
|
|
for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
|
|
String s = E->get().name;
|
|
if (!s.begins_with("autoload/")) {
|
|
continue;
|
|
}
|
|
String name = s.get_slice("/", 1);
|
|
if (name == id) {
|
|
singleton_path = ProjectSettings::get_singleton()->get(s);
|
|
if (singleton_path.begins_with("*")) {
|
|
singleton_path = singleton_path.right(1);
|
|
}
|
|
if (!singleton_path.begins_with("res://")) {
|
|
singleton_path = "res://" + singleton_path;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (!singleton_path.empty()) {
|
|
Ref<Script> script = ResourceLoader::load(singleton_path);
|
|
Ref<GDScript> gds = script;
|
|
if (gds.is_valid()) {
|
|
if (!gds->is_valid()) {
|
|
_set_error("Class '" + id + "' could not be fully loaded (script error or cyclic inheritance).", p_line);
|
|
return DataType();
|
|
}
|
|
result.kind = DataType::GDSCRIPT;
|
|
result.script_type = gds;
|
|
} else if (script.is_valid()) {
|
|
result.kind = DataType::SCRIPT;
|
|
result.script_type = script;
|
|
} else {
|
|
_set_error("Couldn't fully load singleton script '" + id + "' (possible cyclic reference or parse error).", p_line);
|
|
return DataType();
|
|
}
|
|
name_part++;
|
|
continue;
|
|
}
|
|
|
|
p = current_class;
|
|
} else if (base_type.kind == DataType::CLASS) {
|
|
p = base_type.class_type;
|
|
}
|
|
while (p) {
|
|
if (p->constant_expressions.has(id)) {
|
|
if (p->constant_expressions[id].expression->type != Node::TYPE_CONSTANT) {
|
|
_set_error("Parser bug: unresolved constant.", p_line);
|
|
ERR_FAIL_V(result);
|
|
}
|
|
const ConstantNode *cn = static_cast<const ConstantNode *>(p->constant_expressions[id].expression);
|
|
Ref<GDScript> gds = cn->value;
|
|
if (gds.is_valid()) {
|
|
result.kind = DataType::GDSCRIPT;
|
|
result.script_type = gds;
|
|
found = true;
|
|
} else {
|
|
Ref<Script> scr = cn->value;
|
|
if (scr.is_valid()) {
|
|
result.kind = DataType::SCRIPT;
|
|
result.script_type = scr;
|
|
found = true;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Inner classes
|
|
ClassNode *outer_class = p;
|
|
while (outer_class) {
|
|
if (outer_class->name == id) {
|
|
found = true;
|
|
result.kind = DataType::CLASS;
|
|
result.class_type = outer_class;
|
|
break;
|
|
}
|
|
for (int i = 0; i < outer_class->subclasses.size(); i++) {
|
|
if (outer_class->subclasses[i] == p) {
|
|
continue;
|
|
}
|
|
if (outer_class->subclasses[i]->name == id) {
|
|
found = true;
|
|
result.kind = DataType::CLASS;
|
|
result.class_type = outer_class->subclasses[i];
|
|
break;
|
|
}
|
|
}
|
|
if (found) {
|
|
break;
|
|
}
|
|
outer_class = outer_class->owner;
|
|
}
|
|
|
|
if (!found && p->base_type.kind == DataType::CLASS) {
|
|
p = p->base_type.class_type;
|
|
} else {
|
|
base_type = p->base_type;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Still look for class constants in parent scripts
|
|
if (!found && (base_type.kind == DataType::GDSCRIPT || base_type.kind == DataType::SCRIPT)) {
|
|
Ref<Script> scr = base_type.script_type;
|
|
ERR_FAIL_COND_V(scr.is_null(), result);
|
|
while (scr.is_valid()) {
|
|
Map<StringName, Variant> constants;
|
|
scr->get_constants(&constants);
|
|
|
|
if (constants.has(id)) {
|
|
Ref<GDScript> gds = constants[id];
|
|
|
|
if (gds.is_valid()) {
|
|
result.kind = DataType::GDSCRIPT;
|
|
result.script_type = gds;
|
|
found = true;
|
|
} else {
|
|
Ref<Script> scr2 = constants[id];
|
|
if (scr2.is_valid()) {
|
|
result.kind = DataType::SCRIPT;
|
|
result.script_type = scr2;
|
|
found = true;
|
|
}
|
|
}
|
|
}
|
|
if (found) {
|
|
break;
|
|
} else {
|
|
scr = scr->get_base_script();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!found && !for_completion) {
|
|
String base;
|
|
if (name_part == 0) {
|
|
base = "self";
|
|
} else {
|
|
base = result.to_string();
|
|
}
|
|
_set_error("The identifier \"" + String(id) +
|
|
"\" isn't a valid type (not a script or class), or couldn't be found on base \"" + base + "\".",
|
|
p_line);
|
|
return DataType();
|
|
}
|
|
|
|
name_part++;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::_type_from_variant(const Variant &p_value) const {
|
|
DataType result;
|
|
result.has_type = true;
|
|
result.is_constant = true;
|
|
result.kind = DataType::BUILTIN;
|
|
result.builtin_type = p_value.get_type();
|
|
|
|
if (result.builtin_type == Variant::OBJECT) {
|
|
Object *obj = p_value.operator Object *();
|
|
if (!obj) {
|
|
return DataType();
|
|
}
|
|
result.native_type = obj->get_class_name();
|
|
Ref<Script> scr = p_value;
|
|
if (scr.is_valid()) {
|
|
result.is_meta_type = true;
|
|
} else {
|
|
result.is_meta_type = false;
|
|
scr = obj->get_script();
|
|
}
|
|
if (scr.is_valid()) {
|
|
result.script_type = scr;
|
|
Ref<GDScript> gds = scr;
|
|
if (gds.is_valid()) {
|
|
result.kind = DataType::GDSCRIPT;
|
|
} else {
|
|
result.kind = DataType::SCRIPT;
|
|
}
|
|
result.native_type = scr->get_instance_base_type();
|
|
} else {
|
|
result.kind = DataType::NATIVE;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::_type_from_property(const PropertyInfo &p_property, bool p_nil_is_variant) const {
|
|
DataType ret;
|
|
if (p_property.type == Variant::NIL && (p_nil_is_variant || (p_property.usage & PROPERTY_USAGE_NIL_IS_VARIANT))) {
|
|
// Variant
|
|
return ret;
|
|
}
|
|
ret.has_type = true;
|
|
ret.builtin_type = p_property.type;
|
|
if (p_property.type == Variant::OBJECT) {
|
|
ret.kind = DataType::NATIVE;
|
|
ret.native_type = p_property.class_name == StringName() ? "Object" : p_property.class_name;
|
|
} else {
|
|
ret.kind = DataType::BUILTIN;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::_type_from_gdtype(const GDScriptDataType &p_gdtype) const {
|
|
DataType result;
|
|
if (!p_gdtype.has_type) {
|
|
return result;
|
|
}
|
|
|
|
result.has_type = true;
|
|
result.builtin_type = p_gdtype.builtin_type;
|
|
result.native_type = p_gdtype.native_type;
|
|
result.script_type = Ref<Script>(p_gdtype.script_type);
|
|
|
|
switch (p_gdtype.kind) {
|
|
case GDScriptDataType::UNINITIALIZED: {
|
|
ERR_PRINT("Uninitialized datatype. Please report a bug.");
|
|
} break;
|
|
case GDScriptDataType::BUILTIN: {
|
|
result.kind = DataType::BUILTIN;
|
|
} break;
|
|
case GDScriptDataType::NATIVE: {
|
|
result.kind = DataType::NATIVE;
|
|
} break;
|
|
case GDScriptDataType::GDSCRIPT: {
|
|
result.kind = DataType::GDSCRIPT;
|
|
} break;
|
|
case GDScriptDataType::SCRIPT: {
|
|
result.kind = DataType::SCRIPT;
|
|
} break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::_get_operation_type(const Variant::Operator p_op, const DataType &p_a, const DataType &p_b, bool &r_valid) const {
|
|
if (!p_a.has_type || !p_b.has_type) {
|
|
r_valid = true;
|
|
return DataType();
|
|
}
|
|
|
|
Variant::Type a_type = p_a.kind == DataType::BUILTIN ? p_a.builtin_type : Variant::OBJECT;
|
|
Variant::Type b_type = p_b.kind == DataType::BUILTIN ? p_b.builtin_type : Variant::OBJECT;
|
|
|
|
Variant a;
|
|
REF a_ref;
|
|
if (a_type == Variant::OBJECT) {
|
|
a_ref.instance();
|
|
a = a_ref;
|
|
} else {
|
|
Variant::CallError err;
|
|
a = Variant::construct(a_type, nullptr, 0, err);
|
|
if (err.error != Variant::CallError::CALL_OK) {
|
|
r_valid = false;
|
|
return DataType();
|
|
}
|
|
}
|
|
Variant b;
|
|
REF b_ref;
|
|
if (b_type == Variant::OBJECT) {
|
|
b_ref.instance();
|
|
b = b_ref;
|
|
} else {
|
|
Variant::CallError err;
|
|
b = Variant::construct(b_type, nullptr, 0, err);
|
|
if (err.error != Variant::CallError::CALL_OK) {
|
|
r_valid = false;
|
|
return DataType();
|
|
}
|
|
}
|
|
|
|
// Avoid division by zero
|
|
if (a_type == Variant::INT || a_type == Variant::REAL) {
|
|
Variant::evaluate(Variant::OP_ADD, a, 1, a, r_valid);
|
|
}
|
|
if (b_type == Variant::INT || b_type == Variant::REAL) {
|
|
Variant::evaluate(Variant::OP_ADD, b, 1, b, r_valid);
|
|
}
|
|
if (a_type == Variant::STRING && b_type != Variant::ARRAY) {
|
|
a = "%s"; // Work around for formatting operator (%)
|
|
}
|
|
|
|
Variant ret;
|
|
Variant::evaluate(p_op, a, b, ret, r_valid);
|
|
|
|
if (r_valid) {
|
|
return _type_from_variant(ret);
|
|
}
|
|
|
|
return DataType();
|
|
}
|
|
|
|
Variant::Operator GDScriptParser::_get_variant_operation(const OperatorNode::Operator &p_op) const {
|
|
switch (p_op) {
|
|
case OperatorNode::OP_NEG: {
|
|
return Variant::OP_NEGATE;
|
|
} break;
|
|
case OperatorNode::OP_POS: {
|
|
return Variant::OP_POSITIVE;
|
|
} break;
|
|
case OperatorNode::OP_NOT: {
|
|
return Variant::OP_NOT;
|
|
} break;
|
|
case OperatorNode::OP_BIT_INVERT: {
|
|
return Variant::OP_BIT_NEGATE;
|
|
} break;
|
|
case OperatorNode::OP_IN: {
|
|
return Variant::OP_IN;
|
|
} break;
|
|
case OperatorNode::OP_EQUAL: {
|
|
return Variant::OP_EQUAL;
|
|
} break;
|
|
case OperatorNode::OP_NOT_EQUAL: {
|
|
return Variant::OP_NOT_EQUAL;
|
|
} break;
|
|
case OperatorNode::OP_LESS: {
|
|
return Variant::OP_LESS;
|
|
} break;
|
|
case OperatorNode::OP_LESS_EQUAL: {
|
|
return Variant::OP_LESS_EQUAL;
|
|
} break;
|
|
case OperatorNode::OP_GREATER: {
|
|
return Variant::OP_GREATER;
|
|
} break;
|
|
case OperatorNode::OP_GREATER_EQUAL: {
|
|
return Variant::OP_GREATER_EQUAL;
|
|
} break;
|
|
case OperatorNode::OP_AND: {
|
|
return Variant::OP_AND;
|
|
} break;
|
|
case OperatorNode::OP_OR: {
|
|
return Variant::OP_OR;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_ADD:
|
|
case OperatorNode::OP_ADD: {
|
|
return Variant::OP_ADD;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_SUB:
|
|
case OperatorNode::OP_SUB: {
|
|
return Variant::OP_SUBTRACT;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_MUL:
|
|
case OperatorNode::OP_MUL: {
|
|
return Variant::OP_MULTIPLY;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_DIV:
|
|
case OperatorNode::OP_DIV: {
|
|
return Variant::OP_DIVIDE;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_MOD:
|
|
case OperatorNode::OP_MOD: {
|
|
return Variant::OP_MODULE;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_BIT_AND:
|
|
case OperatorNode::OP_BIT_AND: {
|
|
return Variant::OP_BIT_AND;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_BIT_OR:
|
|
case OperatorNode::OP_BIT_OR: {
|
|
return Variant::OP_BIT_OR;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_BIT_XOR:
|
|
case OperatorNode::OP_BIT_XOR: {
|
|
return Variant::OP_BIT_XOR;
|
|
} break;
|
|
case OperatorNode::OP_ASSIGN_SHIFT_LEFT:
|
|
case OperatorNode::OP_SHIFT_LEFT: {
|
|
return Variant::OP_SHIFT_LEFT;
|
|
}
|
|
case OperatorNode::OP_ASSIGN_SHIFT_RIGHT:
|
|
case OperatorNode::OP_SHIFT_RIGHT: {
|
|
return Variant::OP_SHIFT_RIGHT;
|
|
}
|
|
default: {
|
|
return Variant::OP_MAX;
|
|
} break;
|
|
}
|
|
}
|
|
|
|
bool GDScriptParser::_is_type_compatible(const DataType &p_container, const DataType &p_expression, bool p_allow_implicit_conversion) const {
|
|
// Ignore for completion
|
|
if (!check_types || for_completion) {
|
|
return true;
|
|
}
|
|
// Can't test if not all have type
|
|
if (!p_container.has_type || !p_expression.has_type) {
|
|
return true;
|
|
}
|
|
|
|
// Should never get here unresolved
|
|
ERR_FAIL_COND_V(p_container.kind == DataType::UNRESOLVED, false);
|
|
ERR_FAIL_COND_V(p_expression.kind == DataType::UNRESOLVED, false);
|
|
|
|
if (p_container.kind == DataType::BUILTIN && p_expression.kind == DataType::BUILTIN) {
|
|
bool valid = p_container.builtin_type == p_expression.builtin_type;
|
|
if (p_allow_implicit_conversion) {
|
|
valid = valid || Variant::can_convert_strict(p_expression.builtin_type, p_container.builtin_type);
|
|
}
|
|
return valid;
|
|
}
|
|
|
|
if (p_container.kind == DataType::BUILTIN && p_container.builtin_type == Variant::OBJECT) {
|
|
// Object built-in is a special case, it's compatible with any object and with null
|
|
if (p_expression.kind == DataType::BUILTIN) {
|
|
return p_expression.builtin_type == Variant::NIL;
|
|
}
|
|
// If it's not a built-in, must be an object
|
|
return true;
|
|
}
|
|
|
|
if (p_container.kind == DataType::BUILTIN || (p_expression.kind == DataType::BUILTIN && p_expression.builtin_type != Variant::NIL)) {
|
|
// Can't mix built-ins with objects
|
|
return false;
|
|
}
|
|
|
|
// From now on everything is objects, check polymorphism
|
|
// The container must be the same class or a superclass of the expression
|
|
|
|
if (p_expression.kind == DataType::BUILTIN && p_expression.builtin_type == Variant::NIL) {
|
|
// Null can be assigned to object types
|
|
return true;
|
|
}
|
|
|
|
StringName expr_native;
|
|
Ref<Script> expr_script;
|
|
ClassNode *expr_class = nullptr;
|
|
|
|
switch (p_expression.kind) {
|
|
case DataType::NATIVE: {
|
|
if (p_container.kind != DataType::NATIVE) {
|
|
// Non-native type can't be a superclass of a native type
|
|
return false;
|
|
}
|
|
if (p_expression.is_meta_type) {
|
|
expr_native = GDScriptNativeClass::get_class_static();
|
|
} else {
|
|
expr_native = p_expression.native_type;
|
|
}
|
|
} break;
|
|
case DataType::SCRIPT:
|
|
case DataType::GDSCRIPT: {
|
|
if (p_container.kind == DataType::CLASS) {
|
|
// This cannot be resolved without cyclic dependencies, so just bail out
|
|
return false;
|
|
}
|
|
if (p_expression.is_meta_type) {
|
|
expr_native = p_expression.script_type->get_class_name();
|
|
} else {
|
|
expr_script = p_expression.script_type;
|
|
expr_native = expr_script->get_instance_base_type();
|
|
}
|
|
} break;
|
|
case DataType::CLASS: {
|
|
if (p_expression.is_meta_type) {
|
|
expr_native = GDScript::get_class_static();
|
|
} else {
|
|
expr_class = p_expression.class_type;
|
|
ClassNode *base = expr_class;
|
|
while (base->base_type.kind == DataType::CLASS) {
|
|
base = base->base_type.class_type;
|
|
}
|
|
expr_native = base->base_type.native_type;
|
|
expr_script = base->base_type.script_type;
|
|
}
|
|
} break;
|
|
case DataType::BUILTIN: // Already handled above
|
|
case DataType::UNRESOLVED: // Not allowed, see above
|
|
break;
|
|
}
|
|
|
|
// Some classes are prefixed with `_` internally
|
|
if (!ClassDB::class_exists(expr_native)) {
|
|
expr_native = "_" + expr_native;
|
|
}
|
|
|
|
switch (p_container.kind) {
|
|
case DataType::NATIVE: {
|
|
if (p_container.is_meta_type) {
|
|
return ClassDB::is_parent_class(expr_native, GDScriptNativeClass::get_class_static());
|
|
} else {
|
|
StringName container_native = ClassDB::class_exists(p_container.native_type) ? p_container.native_type : StringName("_" + p_container.native_type);
|
|
return ClassDB::is_parent_class(expr_native, container_native);
|
|
}
|
|
} break;
|
|
case DataType::SCRIPT:
|
|
case DataType::GDSCRIPT: {
|
|
if (p_container.is_meta_type) {
|
|
return ClassDB::is_parent_class(expr_native, GDScript::get_class_static());
|
|
}
|
|
if (expr_class == head && p_container.script_type->get_path() == self_path) {
|
|
// Special case: container is self script and expression is self
|
|
return true;
|
|
}
|
|
while (expr_script.is_valid()) {
|
|
if (expr_script == p_container.script_type) {
|
|
return true;
|
|
}
|
|
expr_script = expr_script->get_base_script();
|
|
}
|
|
return false;
|
|
} break;
|
|
case DataType::CLASS: {
|
|
if (p_container.is_meta_type) {
|
|
return ClassDB::is_parent_class(expr_native, GDScript::get_class_static());
|
|
}
|
|
if (p_container.class_type == head && expr_script.is_valid() && expr_script->get_path() == self_path) {
|
|
// Special case: container is self and expression is self script
|
|
return true;
|
|
}
|
|
while (expr_class) {
|
|
if (expr_class == p_container.class_type) {
|
|
return true;
|
|
}
|
|
expr_class = expr_class->base_type.class_type;
|
|
}
|
|
return false;
|
|
} break;
|
|
case DataType::BUILTIN: // Already handled above
|
|
case DataType::UNRESOLVED: // Not allowed, see above
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
GDScriptParser::Node *GDScriptParser::_get_default_value_for_type(const DataType &p_type, int p_line) {
|
|
Node *result;
|
|
|
|
if (p_type.has_type && p_type.kind == DataType::BUILTIN && p_type.builtin_type != Variant::NIL && p_type.builtin_type != Variant::OBJECT) {
|
|
if (p_type.builtin_type == Variant::ARRAY) {
|
|
result = alloc_node<ArrayNode>();
|
|
} else if (p_type.builtin_type == Variant::DICTIONARY) {
|
|
result = alloc_node<DictionaryNode>();
|
|
} else {
|
|
ConstantNode *c = alloc_node<ConstantNode>();
|
|
Variant::CallError err;
|
|
c->value = Variant::construct(p_type.builtin_type, nullptr, 0, err);
|
|
result = c;
|
|
}
|
|
} else {
|
|
ConstantNode *c = alloc_node<ConstantNode>();
|
|
c->value = Variant();
|
|
result = c;
|
|
}
|
|
|
|
result->line = p_line;
|
|
|
|
return result;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) {
|
|
#ifdef DEBUG_ENABLED
|
|
if (p_node->get_datatype().has_type && p_node->type != Node::TYPE_ARRAY && p_node->type != Node::TYPE_DICTIONARY) {
|
|
#else
|
|
if (p_node->get_datatype().has_type) {
|
|
#endif
|
|
return p_node->get_datatype();
|
|
}
|
|
|
|
DataType node_type;
|
|
|
|
switch (p_node->type) {
|
|
case Node::TYPE_CONSTANT: {
|
|
node_type = _type_from_variant(static_cast<ConstantNode *>(p_node)->value);
|
|
} break;
|
|
case Node::TYPE_TYPE: {
|
|
TypeNode *tn = static_cast<TypeNode *>(p_node);
|
|
node_type.has_type = true;
|
|
node_type.is_meta_type = true;
|
|
node_type.kind = DataType::BUILTIN;
|
|
node_type.builtin_type = tn->vtype;
|
|
} break;
|
|
case Node::TYPE_ARRAY: {
|
|
node_type.has_type = true;
|
|
node_type.kind = DataType::BUILTIN;
|
|
node_type.builtin_type = Variant::ARRAY;
|
|
#ifdef DEBUG_ENABLED
|
|
// Check stuff inside the array
|
|
ArrayNode *an = static_cast<ArrayNode *>(p_node);
|
|
for (int i = 0; i < an->elements.size(); i++) {
|
|
_reduce_node_type(an->elements[i]);
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
} break;
|
|
case Node::TYPE_DICTIONARY: {
|
|
node_type.has_type = true;
|
|
node_type.kind = DataType::BUILTIN;
|
|
node_type.builtin_type = Variant::DICTIONARY;
|
|
#ifdef DEBUG_ENABLED
|
|
// Check stuff inside the dictionarty
|
|
DictionaryNode *dn = static_cast<DictionaryNode *>(p_node);
|
|
for (int i = 0; i < dn->elements.size(); i++) {
|
|
_reduce_node_type(dn->elements[i].key);
|
|
_reduce_node_type(dn->elements[i].value);
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
} break;
|
|
case Node::TYPE_SELF: {
|
|
node_type.has_type = true;
|
|
node_type.kind = DataType::CLASS;
|
|
node_type.class_type = current_class;
|
|
node_type.is_constant = true;
|
|
} break;
|
|
case Node::TYPE_IDENTIFIER: {
|
|
IdentifierNode *id = static_cast<IdentifierNode *>(p_node);
|
|
if (id->declared_block) {
|
|
node_type = id->declared_block->variables[id->name]->get_datatype();
|
|
id->declared_block->variables[id->name]->usages += 1;
|
|
} else if (id->name == "#match_value") {
|
|
// It's a special id just for the match statetement, ignore
|
|
break;
|
|
} else if (current_function && current_function->arguments.find(id->name) >= 0) {
|
|
int idx = current_function->arguments.find(id->name);
|
|
node_type = current_function->argument_types[idx];
|
|
} else {
|
|
node_type = _reduce_identifier_type(nullptr, id->name, id->line, false);
|
|
}
|
|
} break;
|
|
case Node::TYPE_CAST: {
|
|
CastNode *cn = static_cast<CastNode *>(p_node);
|
|
|
|
DataType source_type = _reduce_node_type(cn->source_node);
|
|
cn->cast_type = _resolve_type(cn->cast_type, cn->line);
|
|
if (source_type.has_type) {
|
|
bool valid = false;
|
|
if (check_types) {
|
|
if (cn->cast_type.kind == DataType::BUILTIN && source_type.kind == DataType::BUILTIN) {
|
|
valid = Variant::can_convert(source_type.builtin_type, cn->cast_type.builtin_type);
|
|
}
|
|
if (cn->cast_type.kind != DataType::BUILTIN && source_type.kind != DataType::BUILTIN) {
|
|
valid = _is_type_compatible(cn->cast_type, source_type) || _is_type_compatible(source_type, cn->cast_type);
|
|
}
|
|
|
|
if (!valid) {
|
|
_set_error("Invalid cast. Cannot convert from \"" + source_type.to_string() +
|
|
"\" to \"" + cn->cast_type.to_string() + "\".",
|
|
cn->line);
|
|
return DataType();
|
|
}
|
|
}
|
|
} else {
|
|
#ifdef DEBUG_ENABLED
|
|
_add_warning(GDScriptWarning::UNSAFE_CAST, cn->line, cn->cast_type.to_string());
|
|
#endif // DEBUG_ENABLED
|
|
_mark_line_as_unsafe(cn->line);
|
|
}
|
|
|
|
node_type = cn->cast_type;
|
|
|
|
} break;
|
|
case Node::TYPE_OPERATOR: {
|
|
OperatorNode *op = static_cast<OperatorNode *>(p_node);
|
|
|
|
switch (op->op) {
|
|
case OperatorNode::OP_CALL:
|
|
case OperatorNode::OP_PARENT_CALL: {
|
|
node_type = _reduce_function_call_type(op);
|
|
} break;
|
|
case OperatorNode::OP_YIELD: {
|
|
if (op->arguments.size() == 2) {
|
|
DataType base_type = _reduce_node_type(op->arguments[0]);
|
|
DataType signal_type = _reduce_node_type(op->arguments[1]);
|
|
// TODO: Check if signal exists when it's a constant
|
|
if (base_type.has_type && base_type.kind == DataType::BUILTIN && base_type.builtin_type != Variant::NIL && base_type.builtin_type != Variant::OBJECT) {
|
|
_set_error("The first argument of \"yield()\" must be an object.", op->line);
|
|
return DataType();
|
|
}
|
|
if (signal_type.has_type && (signal_type.kind != DataType::BUILTIN || signal_type.builtin_type != Variant::STRING)) {
|
|
_set_error("The second argument of \"yield()\" must be a string.", op->line);
|
|
return DataType();
|
|
}
|
|
}
|
|
// yield can return anything
|
|
node_type.has_type = false;
|
|
} break;
|
|
case OperatorNode::OP_IS:
|
|
case OperatorNode::OP_IS_BUILTIN: {
|
|
if (op->arguments.size() != 2) {
|
|
_set_error("Parser bug: binary operation without 2 arguments.", op->line);
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
|
|
DataType value_type = _reduce_node_type(op->arguments[0]);
|
|
DataType type_type = _reduce_node_type(op->arguments[1]);
|
|
|
|
if (check_types && type_type.has_type) {
|
|
if (!type_type.is_meta_type && (type_type.kind != DataType::NATIVE || !ClassDB::is_parent_class(type_type.native_type, "Script"))) {
|
|
_set_error("Invalid \"is\" test: the right operand isn't a type (neither a native type nor a script).", op->line);
|
|
return DataType();
|
|
}
|
|
type_type.is_meta_type = false; // Test the actual type
|
|
if (!_is_type_compatible(type_type, value_type) && !_is_type_compatible(value_type, type_type)) {
|
|
if (op->op == OperatorNode::OP_IS) {
|
|
_set_error("A value of type \"" + value_type.to_string() + "\" will never be an instance of \"" + type_type.to_string() + "\".", op->line);
|
|
} else {
|
|
_set_error("A value of type \"" + value_type.to_string() + "\" will never be of type \"" + type_type.to_string() + "\".", op->line);
|
|
}
|
|
return DataType();
|
|
}
|
|
}
|
|
|
|
node_type.has_type = true;
|
|
node_type.is_constant = true;
|
|
node_type.is_meta_type = false;
|
|
node_type.kind = DataType::BUILTIN;
|
|
node_type.builtin_type = Variant::BOOL;
|
|
} break;
|
|
// Unary operators
|
|
case OperatorNode::OP_NEG:
|
|
case OperatorNode::OP_POS:
|
|
case OperatorNode::OP_NOT:
|
|
case OperatorNode::OP_BIT_INVERT: {
|
|
DataType argument_type = _reduce_node_type(op->arguments[0]);
|
|
if (!argument_type.has_type) {
|
|
break;
|
|
}
|
|
|
|
Variant::Operator var_op = _get_variant_operation(op->op);
|
|
bool valid = false;
|
|
node_type = _get_operation_type(var_op, argument_type, argument_type, valid);
|
|
|
|
if (check_types && !valid) {
|
|
_set_error("Invalid operand type (\"" + argument_type.to_string() +
|
|
"\") to unary operator \"" + Variant::get_operator_name(var_op) + "\".",
|
|
op->line, op->column);
|
|
return DataType();
|
|
}
|
|
|
|
} break;
|
|
// Binary operators
|
|
case OperatorNode::OP_IN:
|
|
case OperatorNode::OP_EQUAL:
|
|
case OperatorNode::OP_NOT_EQUAL:
|
|
case OperatorNode::OP_LESS:
|
|
case OperatorNode::OP_LESS_EQUAL:
|
|
case OperatorNode::OP_GREATER:
|
|
case OperatorNode::OP_GREATER_EQUAL:
|
|
case OperatorNode::OP_AND:
|
|
case OperatorNode::OP_OR:
|
|
case OperatorNode::OP_ADD:
|
|
case OperatorNode::OP_SUB:
|
|
case OperatorNode::OP_MUL:
|
|
case OperatorNode::OP_DIV:
|
|
case OperatorNode::OP_MOD:
|
|
case OperatorNode::OP_SHIFT_LEFT:
|
|
case OperatorNode::OP_SHIFT_RIGHT:
|
|
case OperatorNode::OP_BIT_AND:
|
|
case OperatorNode::OP_BIT_OR:
|
|
case OperatorNode::OP_BIT_XOR: {
|
|
if (op->arguments.size() != 2) {
|
|
_set_error("Parser bug: binary operation without 2 arguments.", op->line);
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
|
|
DataType argument_a_type = _reduce_node_type(op->arguments[0]);
|
|
DataType argument_b_type = _reduce_node_type(op->arguments[1]);
|
|
if (!argument_a_type.has_type || !argument_b_type.has_type) {
|
|
_mark_line_as_unsafe(op->line);
|
|
break;
|
|
}
|
|
|
|
Variant::Operator var_op = _get_variant_operation(op->op);
|
|
bool valid = false;
|
|
node_type = _get_operation_type(var_op, argument_a_type, argument_b_type, valid);
|
|
|
|
if (check_types && !valid) {
|
|
_set_error("Invalid operand types (\"" + argument_a_type.to_string() + "\" and \"" +
|
|
argument_b_type.to_string() + "\") to operator \"" + Variant::get_operator_name(var_op) + "\".",
|
|
op->line, op->column);
|
|
return DataType();
|
|
}
|
|
#ifdef DEBUG_ENABLED
|
|
if (var_op == Variant::OP_DIVIDE && argument_a_type.kind == DataType::BUILTIN && argument_a_type.builtin_type == Variant::INT &&
|
|
argument_b_type.kind == DataType::BUILTIN && argument_b_type.builtin_type == Variant::INT) {
|
|
_add_warning(GDScriptWarning::INTEGER_DIVISION, op->line);
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
} break;
|
|
// Ternary operators
|
|
case OperatorNode::OP_TERNARY_IF: {
|
|
if (op->arguments.size() != 3) {
|
|
_set_error("Parser bug: ternary operation without 3 arguments.");
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
|
|
DataType true_type = _reduce_node_type(op->arguments[1]);
|
|
DataType false_type = _reduce_node_type(op->arguments[2]);
|
|
// Check arguments[0] errors.
|
|
_reduce_node_type(op->arguments[0]);
|
|
|
|
// If types are equal, then the expression is of the same type
|
|
// If they are compatible, return the broader type
|
|
if (true_type == false_type || _is_type_compatible(true_type, false_type)) {
|
|
node_type = true_type;
|
|
} else if (_is_type_compatible(false_type, true_type)) {
|
|
node_type = false_type;
|
|
} else {
|
|
#ifdef DEBUG_ENABLED
|
|
_add_warning(GDScriptWarning::INCOMPATIBLE_TERNARY, op->line);
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
} break;
|
|
// Assignment should never happen within an expression
|
|
case OperatorNode::OP_ASSIGN:
|
|
case OperatorNode::OP_ASSIGN_ADD:
|
|
case OperatorNode::OP_ASSIGN_SUB:
|
|
case OperatorNode::OP_ASSIGN_MUL:
|
|
case OperatorNode::OP_ASSIGN_DIV:
|
|
case OperatorNode::OP_ASSIGN_MOD:
|
|
case OperatorNode::OP_ASSIGN_SHIFT_LEFT:
|
|
case OperatorNode::OP_ASSIGN_SHIFT_RIGHT:
|
|
case OperatorNode::OP_ASSIGN_BIT_AND:
|
|
case OperatorNode::OP_ASSIGN_BIT_OR:
|
|
case OperatorNode::OP_ASSIGN_BIT_XOR:
|
|
case OperatorNode::OP_INIT_ASSIGN: {
|
|
_set_error("Assignment inside an expression isn't allowed (parser bug?).", op->line);
|
|
return DataType();
|
|
|
|
} break;
|
|
case OperatorNode::OP_INDEX_NAMED: {
|
|
if (op->arguments.size() != 2) {
|
|
_set_error("Parser bug: named index with invalid arguments.", op->line);
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
if (op->arguments[1]->type != Node::TYPE_IDENTIFIER) {
|
|
_set_error("Parser bug: named index without identifier argument.", op->line);
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
|
|
DataType base_type = _reduce_node_type(op->arguments[0]);
|
|
IdentifierNode *member_id = static_cast<IdentifierNode *>(op->arguments[1]);
|
|
|
|
if (base_type.has_type) {
|
|
if (check_types && base_type.kind == DataType::BUILTIN) {
|
|
// Variant type, just test if it's possible
|
|
DataType result;
|
|
switch (base_type.builtin_type) {
|
|
case Variant::NIL:
|
|
case Variant::DICTIONARY: {
|
|
result.has_type = false;
|
|
} break;
|
|
default: {
|
|
Variant::CallError err;
|
|
Variant temp = Variant::construct(base_type.builtin_type, nullptr, 0, err);
|
|
|
|
bool valid = false;
|
|
Variant res = temp.get(member_id->name.operator String(), &valid);
|
|
|
|
if (valid) {
|
|
result = _type_from_variant(res);
|
|
} else if (check_types) {
|
|
_set_error("Can't get index \"" + String(member_id->name.operator String()) + "\" on base \"" +
|
|
base_type.to_string() + "\".",
|
|
op->line);
|
|
return DataType();
|
|
}
|
|
} break;
|
|
}
|
|
result.is_constant = false;
|
|
node_type = result;
|
|
} else {
|
|
node_type = _reduce_identifier_type(&base_type, member_id->name, op->line, true);
|
|
#ifdef DEBUG_ENABLED
|
|
if (!node_type.has_type) {
|
|
_mark_line_as_unsafe(op->line);
|
|
_add_warning(GDScriptWarning::UNSAFE_PROPERTY_ACCESS, op->line, member_id->name.operator String(), base_type.to_string());
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
} else {
|
|
_mark_line_as_unsafe(op->line);
|
|
}
|
|
if (error_set) {
|
|
return DataType();
|
|
}
|
|
} break;
|
|
case OperatorNode::OP_INDEX: {
|
|
if (op->arguments[1]->type == Node::TYPE_CONSTANT) {
|
|
ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[1]);
|
|
if (cn->value.get_type() == Variant::STRING) {
|
|
// Treat this as named indexing
|
|
|
|
IdentifierNode *id = alloc_node<IdentifierNode>();
|
|
id->name = cn->value.operator StringName();
|
|
id->datatype = cn->datatype;
|
|
|
|
op->op = OperatorNode::OP_INDEX_NAMED;
|
|
op->arguments.write[1] = id;
|
|
|
|
return _reduce_node_type(op);
|
|
}
|
|
}
|
|
|
|
DataType base_type = _reduce_node_type(op->arguments[0]);
|
|
DataType index_type = _reduce_node_type(op->arguments[1]);
|
|
|
|
if (!base_type.has_type) {
|
|
_mark_line_as_unsafe(op->line);
|
|
break;
|
|
}
|
|
|
|
if (check_types && index_type.has_type) {
|
|
if (base_type.kind == DataType::BUILTIN) {
|
|
// Check if indexing is valid
|
|
bool error = index_type.kind != DataType::BUILTIN && base_type.builtin_type != Variant::DICTIONARY;
|
|
if (!error) {
|
|
switch (base_type.builtin_type) {
|
|
// Expect int or real as index
|
|
case Variant::POOL_BYTE_ARRAY:
|
|
case Variant::POOL_COLOR_ARRAY:
|
|
case Variant::POOL_INT_ARRAY:
|
|
case Variant::POOL_REAL_ARRAY:
|
|
case Variant::POOL_STRING_ARRAY:
|
|
case Variant::POOL_VECTOR2_ARRAY:
|
|
case Variant::POOL_VECTOR3_ARRAY:
|
|
case Variant::ARRAY:
|
|
case Variant::STRING: {
|
|
error = index_type.builtin_type != Variant::INT && index_type.builtin_type != Variant::REAL;
|
|
} break;
|
|
// Expect String only
|
|
case Variant::RECT2:
|
|
case Variant::PLANE:
|
|
case Variant::QUAT:
|
|
case Variant::AABB:
|
|
case Variant::OBJECT: {
|
|
error = index_type.builtin_type != Variant::STRING;
|
|
} break;
|
|
// Expect String or number
|
|
case Variant::VECTOR2:
|
|
case Variant::VECTOR3:
|
|
case Variant::TRANSFORM2D:
|
|
case Variant::BASIS:
|
|
case Variant::TRANSFORM: {
|
|
error = index_type.builtin_type != Variant::INT && index_type.builtin_type != Variant::REAL &&
|
|
index_type.builtin_type != Variant::STRING;
|
|
} break;
|
|
// Expect String or int
|
|
case Variant::COLOR: {
|
|
error = index_type.builtin_type != Variant::INT && index_type.builtin_type != Variant::STRING;
|
|
} break;
|
|
default: {
|
|
}
|
|
}
|
|
}
|
|
if (error) {
|
|
_set_error("Invalid index type (" + index_type.to_string() + ") for base \"" + base_type.to_string() + "\".",
|
|
op->line);
|
|
return DataType();
|
|
}
|
|
|
|
if (op->arguments[1]->type == GDScriptParser::Node::TYPE_CONSTANT) {
|
|
ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[1]);
|
|
// Index is a constant, just try it if possible
|
|
switch (base_type.builtin_type) {
|
|
// Arrays/string have variable indexing, can't test directly
|
|
case Variant::STRING:
|
|
case Variant::ARRAY:
|
|
case Variant::DICTIONARY:
|
|
case Variant::POOL_BYTE_ARRAY:
|
|
case Variant::POOL_COLOR_ARRAY:
|
|
case Variant::POOL_INT_ARRAY:
|
|
case Variant::POOL_REAL_ARRAY:
|
|
case Variant::POOL_STRING_ARRAY:
|
|
case Variant::POOL_VECTOR2_ARRAY:
|
|
case Variant::POOL_VECTOR3_ARRAY: {
|
|
break;
|
|
}
|
|
default: {
|
|
Variant::CallError err;
|
|
Variant temp = Variant::construct(base_type.builtin_type, nullptr, 0, err);
|
|
|
|
bool valid = false;
|
|
Variant res = temp.get(cn->value, &valid);
|
|
|
|
if (valid) {
|
|
node_type = _type_from_variant(res);
|
|
node_type.is_constant = false;
|
|
} else if (check_types) {
|
|
_set_error("Can't get index \"" + String(cn->value) + "\" on base \"" +
|
|
base_type.to_string() + "\".",
|
|
op->line);
|
|
return DataType();
|
|
}
|
|
} break;
|
|
}
|
|
} else {
|
|
_mark_line_as_unsafe(op->line);
|
|
}
|
|
} else if (!for_completion && (index_type.kind != DataType::BUILTIN || index_type.builtin_type != Variant::STRING)) {
|
|
_set_error("Only strings can be used as an index in the base type \"" + base_type.to_string() + "\".", op->line);
|
|
return DataType();
|
|
}
|
|
}
|
|
if (check_types && !node_type.has_type && base_type.kind == DataType::BUILTIN) {
|
|
// Can infer indexing type for some variant types
|
|
DataType result;
|
|
result.has_type = true;
|
|
result.kind = DataType::BUILTIN;
|
|
switch (base_type.builtin_type) {
|
|
// Can't index at all
|
|
case Variant::NIL:
|
|
case Variant::BOOL:
|
|
case Variant::INT:
|
|
case Variant::REAL:
|
|
case Variant::NODE_PATH:
|
|
case Variant::_RID: {
|
|
_set_error("Can't index on a value of type \"" + base_type.to_string() + "\".", op->line);
|
|
return DataType();
|
|
} break;
|
|
// Return int
|
|
case Variant::POOL_BYTE_ARRAY:
|
|
case Variant::POOL_INT_ARRAY: {
|
|
result.builtin_type = Variant::INT;
|
|
} break;
|
|
// Return real
|
|
case Variant::POOL_REAL_ARRAY:
|
|
case Variant::VECTOR2:
|
|
case Variant::VECTOR3:
|
|
case Variant::QUAT: {
|
|
result.builtin_type = Variant::REAL;
|
|
} break;
|
|
// Return color
|
|
case Variant::POOL_COLOR_ARRAY: {
|
|
result.builtin_type = Variant::COLOR;
|
|
} break;
|
|
// Return string
|
|
case Variant::POOL_STRING_ARRAY:
|
|
case Variant::STRING: {
|
|
result.builtin_type = Variant::STRING;
|
|
} break;
|
|
// Return Vector2
|
|
case Variant::POOL_VECTOR2_ARRAY:
|
|
case Variant::TRANSFORM2D:
|
|
case Variant::RECT2: {
|
|
result.builtin_type = Variant::VECTOR2;
|
|
} break;
|
|
// Return Vector3
|
|
case Variant::POOL_VECTOR3_ARRAY:
|
|
case Variant::AABB:
|
|
case Variant::BASIS: {
|
|
result.builtin_type = Variant::VECTOR3;
|
|
} break;
|
|
// Depends on the index
|
|
case Variant::TRANSFORM:
|
|
case Variant::PLANE:
|
|
case Variant::COLOR:
|
|
default: {
|
|
result.has_type = false;
|
|
} break;
|
|
}
|
|
node_type = result;
|
|
}
|
|
} break;
|
|
default: {
|
|
_set_error("Parser bug: unhandled operation.", op->line);
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
}
|
|
} break;
|
|
default: {
|
|
}
|
|
}
|
|
|
|
node_type = _resolve_type(node_type, p_node->line);
|
|
p_node->set_datatype(node_type);
|
|
return node_type;
|
|
}
|
|
|
|
bool GDScriptParser::_get_function_signature(DataType &p_base_type, const StringName &p_function, DataType &r_return_type, List<DataType> &r_arg_types, int &r_default_arg_count, bool &r_static, bool &r_vararg) const {
|
|
r_static = false;
|
|
r_default_arg_count = 0;
|
|
|
|
DataType original_type = p_base_type;
|
|
ClassNode *base = nullptr;
|
|
FunctionNode *callee = nullptr;
|
|
|
|
if (p_base_type.kind == DataType::CLASS) {
|
|
base = p_base_type.class_type;
|
|
}
|
|
|
|
// Look up the current file (parse tree)
|
|
while (!callee && base) {
|
|
for (int i = 0; i < base->static_functions.size(); i++) {
|
|
FunctionNode *func = base->static_functions[i];
|
|
if (p_function == func->name) {
|
|
r_static = true;
|
|
callee = func;
|
|
break;
|
|
}
|
|
}
|
|
if (!callee && !p_base_type.is_meta_type) {
|
|
for (int i = 0; i < base->functions.size(); i++) {
|
|
FunctionNode *func = base->functions[i];
|
|
if (p_function == func->name) {
|
|
callee = func;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
p_base_type = base->base_type;
|
|
if (p_base_type.kind == DataType::CLASS) {
|
|
base = p_base_type.class_type;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (callee) {
|
|
r_return_type = callee->get_datatype();
|
|
for (int i = 0; i < callee->argument_types.size(); i++) {
|
|
r_arg_types.push_back(callee->argument_types[i]);
|
|
}
|
|
r_default_arg_count = callee->default_values.size();
|
|
return true;
|
|
}
|
|
|
|
// Nothing in current file, check parent script
|
|
Ref<GDScript> base_gdscript;
|
|
Ref<Script> base_script;
|
|
StringName native;
|
|
if (p_base_type.kind == DataType::GDSCRIPT) {
|
|
base_gdscript = p_base_type.script_type;
|
|
if (base_gdscript.is_null() || !base_gdscript->is_valid()) {
|
|
// GDScript wasn't properly compíled, don't bother trying
|
|
return false;
|
|
}
|
|
} else if (p_base_type.kind == DataType::SCRIPT) {
|
|
base_script = p_base_type.script_type;
|
|
} else if (p_base_type.kind == DataType::NATIVE) {
|
|
native = p_base_type.native_type;
|
|
}
|
|
|
|
while (base_gdscript.is_valid()) {
|
|
native = base_gdscript->get_instance_base_type();
|
|
|
|
Map<StringName, GDScriptFunction *> funcs = base_gdscript->get_member_functions();
|
|
|
|
if (funcs.has(p_function)) {
|
|
GDScriptFunction *f = funcs[p_function];
|
|
r_static = f->is_static();
|
|
r_default_arg_count = f->get_default_argument_count();
|
|
r_return_type = _type_from_gdtype(f->get_return_type());
|
|
for (int i = 0; i < f->get_argument_count(); i++) {
|
|
r_arg_types.push_back(_type_from_gdtype(f->get_argument_type(i)));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
base_gdscript = base_gdscript->get_base_script();
|
|
}
|
|
|
|
while (base_script.is_valid()) {
|
|
native = base_script->get_instance_base_type();
|
|
MethodInfo mi = base_script->get_method_info(p_function);
|
|
|
|
if (!(mi == MethodInfo())) {
|
|
r_return_type = _type_from_property(mi.return_val, false);
|
|
r_default_arg_count = mi.default_arguments.size();
|
|
for (List<PropertyInfo>::Element *E = mi.arguments.front(); E; E = E->next()) {
|
|
r_arg_types.push_back(_type_from_property(E->get()));
|
|
}
|
|
return true;
|
|
}
|
|
base_script = base_script->get_base_script();
|
|
}
|
|
|
|
if (native == StringName()) {
|
|
// Empty native class, might happen in some Script implementations
|
|
// Just ignore it
|
|
return false;
|
|
}
|
|
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
|
|
// Only native remains
|
|
if (!ClassDB::class_exists(native)) {
|
|
native = "_" + native.operator String();
|
|
}
|
|
if (!ClassDB::class_exists(native)) {
|
|
if (!check_types) {
|
|
return false;
|
|
}
|
|
ERR_FAIL_V_MSG(false, "Parser bug: Class '" + String(native) + "' not found.");
|
|
}
|
|
|
|
MethodBind *method = ClassDB::get_method(native, p_function);
|
|
|
|
if (!method) {
|
|
// Try virtual methods
|
|
List<MethodInfo> virtuals;
|
|
ClassDB::get_virtual_methods(native, &virtuals);
|
|
|
|
for (const List<MethodInfo>::Element *E = virtuals.front(); E; E = E->next()) {
|
|
const MethodInfo &mi = E->get();
|
|
if (mi.name == p_function) {
|
|
r_default_arg_count = mi.default_arguments.size();
|
|
for (const List<PropertyInfo>::Element *pi = mi.arguments.front(); pi; pi = pi->next()) {
|
|
r_arg_types.push_back(_type_from_property(pi->get()));
|
|
}
|
|
r_return_type = _type_from_property(mi.return_val, false);
|
|
r_vararg = mi.flags & METHOD_FLAG_VARARG;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// If the base is a script, it might be trying to access members of the Script class itself
|
|
if (original_type.is_meta_type && !(p_function == "new") && (original_type.kind == DataType::SCRIPT || original_type.kind == DataType::GDSCRIPT)) {
|
|
method = ClassDB::get_method(original_type.script_type->get_class_name(), p_function);
|
|
|
|
if (method) {
|
|
r_static = true;
|
|
} else {
|
|
// Try virtual methods of the script type
|
|
virtuals.clear();
|
|
ClassDB::get_virtual_methods(original_type.script_type->get_class_name(), &virtuals);
|
|
for (const List<MethodInfo>::Element *E = virtuals.front(); E; E = E->next()) {
|
|
const MethodInfo &mi = E->get();
|
|
if (mi.name == p_function) {
|
|
r_default_arg_count = mi.default_arguments.size();
|
|
for (const List<PropertyInfo>::Element *pi = mi.arguments.front(); pi; pi = pi->next()) {
|
|
r_arg_types.push_back(_type_from_property(pi->get()));
|
|
}
|
|
r_return_type = _type_from_property(mi.return_val, false);
|
|
r_static = true;
|
|
r_vararg = mi.flags & METHOD_FLAG_VARARG;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
r_default_arg_count = method->get_default_argument_count();
|
|
if (method->get_name() == "get_script") {
|
|
r_return_type = DataType(); // Variant for now and let runtime decide.
|
|
} else {
|
|
r_return_type = _type_from_property(method->get_return_info(), false);
|
|
}
|
|
r_vararg = method->is_vararg();
|
|
|
|
for (int i = 0; i < method->get_argument_count(); i++) {
|
|
r_arg_types.push_back(_type_from_property(method->get_argument_info(i)));
|
|
}
|
|
return true;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::_reduce_function_call_type(const OperatorNode *p_call) {
|
|
if (p_call->arguments.size() < 1) {
|
|
_set_error("Parser bug: function call without enough arguments.", p_call->line);
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
|
|
DataType return_type;
|
|
List<DataType> arg_types;
|
|
int default_args_count = 0;
|
|
String callee_name;
|
|
bool is_vararg = false;
|
|
#ifdef DEBUG_ENABLED
|
|
int arg_count = p_call->arguments.size();
|
|
#endif
|
|
|
|
switch (p_call->arguments[0]->type) {
|
|
case GDScriptParser::Node::TYPE_TYPE: {
|
|
// Built-in constructor, special case
|
|
TypeNode *tn = static_cast<TypeNode *>(p_call->arguments[0]);
|
|
|
|
Vector<DataType> par_types;
|
|
par_types.resize(p_call->arguments.size() - 1);
|
|
for (int i = 1; i < p_call->arguments.size(); i++) {
|
|
par_types.write[i - 1] = _reduce_node_type(p_call->arguments[i]);
|
|
}
|
|
|
|
if (error_set) {
|
|
return DataType();
|
|
}
|
|
|
|
// Special case: check copy constructor. Those are defined implicitly in Variant.
|
|
if (par_types.size() == 1) {
|
|
if (!par_types[0].has_type || (par_types[0].kind == DataType::BUILTIN && par_types[0].builtin_type == tn->vtype)) {
|
|
DataType result;
|
|
result.has_type = true;
|
|
result.kind = DataType::BUILTIN;
|
|
result.builtin_type = tn->vtype;
|
|
return result;
|
|
}
|
|
}
|
|
|
|
bool match = false;
|
|
List<MethodInfo> constructors;
|
|
Variant::get_constructor_list(tn->vtype, &constructors);
|
|
PropertyInfo return_type2;
|
|
|
|
for (List<MethodInfo>::Element *E = constructors.front(); E; E = E->next()) {
|
|
MethodInfo &mi = E->get();
|
|
|
|
if (p_call->arguments.size() - 1 < mi.arguments.size() - mi.default_arguments.size()) {
|
|
continue;
|
|
}
|
|
if (p_call->arguments.size() - 1 > mi.arguments.size()) {
|
|
continue;
|
|
}
|
|
|
|
bool types_match = true;
|
|
for (int i = 0; i < par_types.size(); i++) {
|
|
DataType arg_type;
|
|
if (mi.arguments[i].type != Variant::NIL) {
|
|
arg_type.has_type = true;
|
|
arg_type.kind = mi.arguments[i].type == Variant::OBJECT ? DataType::NATIVE : DataType::BUILTIN;
|
|
arg_type.builtin_type = mi.arguments[i].type;
|
|
arg_type.native_type = mi.arguments[i].class_name;
|
|
}
|
|
|
|
if (!_is_type_compatible(arg_type, par_types[i], true)) {
|
|
types_match = false;
|
|
break;
|
|
} else {
|
|
#ifdef DEBUG_ENABLED
|
|
if (arg_type.kind == DataType::BUILTIN && arg_type.builtin_type == Variant::INT && par_types[i].kind == DataType::BUILTIN && par_types[i].builtin_type == Variant::REAL) {
|
|
_add_warning(GDScriptWarning::NARROWING_CONVERSION, p_call->line, Variant::get_type_name(tn->vtype));
|
|
}
|
|
if (par_types[i].may_yield && p_call->arguments[i + 1]->type == Node::TYPE_OPERATOR) {
|
|
_add_warning(GDScriptWarning::FUNCTION_MAY_YIELD, p_call->line, _find_function_name(static_cast<OperatorNode *>(p_call->arguments[i + 1])));
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
}
|
|
|
|
if (types_match) {
|
|
match = true;
|
|
return_type2 = mi.return_val;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (match) {
|
|
return _type_from_property(return_type2, false);
|
|
} else if (check_types) {
|
|
String err = "No constructor of '";
|
|
err += Variant::get_type_name(tn->vtype);
|
|
err += "' matches the signature '";
|
|
err += Variant::get_type_name(tn->vtype) + "(";
|
|
for (int i = 0; i < par_types.size(); i++) {
|
|
if (i > 0) {
|
|
err += ", ";
|
|
}
|
|
err += par_types[i].to_string();
|
|
}
|
|
err += ")'.";
|
|
_set_error(err, p_call->line, p_call->column);
|
|
return DataType();
|
|
}
|
|
return DataType();
|
|
} break;
|
|
case GDScriptParser::Node::TYPE_BUILT_IN_FUNCTION: {
|
|
BuiltInFunctionNode *func = static_cast<BuiltInFunctionNode *>(p_call->arguments[0]);
|
|
MethodInfo mi = GDScriptFunctions::get_info(func->function);
|
|
|
|
return_type = _type_from_property(mi.return_val, false);
|
|
|
|
// Check all arguments beforehand to solve warnings
|
|
for (int i = 1; i < p_call->arguments.size(); i++) {
|
|
_reduce_node_type(p_call->arguments[i]);
|
|
}
|
|
|
|
// Check arguments
|
|
|
|
is_vararg = mi.flags & METHOD_FLAG_VARARG;
|
|
|
|
default_args_count = mi.default_arguments.size();
|
|
callee_name = mi.name;
|
|
#ifdef DEBUG_ENABLED
|
|
arg_count -= 1;
|
|
#endif
|
|
|
|
// Check each argument type
|
|
for (List<PropertyInfo>::Element *E = mi.arguments.front(); E; E = E->next()) {
|
|
arg_types.push_back(_type_from_property(E->get()));
|
|
}
|
|
} break;
|
|
default: {
|
|
if (p_call->op == OperatorNode::OP_CALL && p_call->arguments.size() < 2) {
|
|
_set_error("Parser bug: self method call without enough arguments.", p_call->line);
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
|
|
int arg_id = p_call->op == OperatorNode::OP_CALL ? 1 : 0;
|
|
|
|
if (p_call->arguments[arg_id]->type != Node::TYPE_IDENTIFIER) {
|
|
_set_error("Parser bug: invalid function call argument.", p_call->line);
|
|
ERR_FAIL_V(DataType());
|
|
}
|
|
|
|
// Check all arguments beforehand to solve warnings
|
|
for (int i = arg_id + 1; i < p_call->arguments.size(); i++) {
|
|
_reduce_node_type(p_call->arguments[i]);
|
|
}
|
|
|
|
IdentifierNode *func_id = static_cast<IdentifierNode *>(p_call->arguments[arg_id]);
|
|
callee_name = func_id->name;
|
|
#ifdef DEBUG_ENABLED
|
|
arg_count -= 1 + arg_id;
|
|
#endif
|
|
|
|
DataType base_type;
|
|
if (p_call->op == OperatorNode::OP_PARENT_CALL) {
|
|
base_type = current_class->base_type;
|
|
} else {
|
|
base_type = _reduce_node_type(p_call->arguments[0]);
|
|
}
|
|
|
|
if (!base_type.has_type || (base_type.kind == DataType::BUILTIN && base_type.builtin_type == Variant::NIL)) {
|
|
_mark_line_as_unsafe(p_call->line);
|
|
return DataType();
|
|
}
|
|
|
|
if (base_type.kind == DataType::BUILTIN) {
|
|
Variant::CallError err;
|
|
Variant tmp = Variant::construct(base_type.builtin_type, nullptr, 0, err);
|
|
|
|
if (check_types) {
|
|
if (!tmp.has_method(callee_name)) {
|
|
_set_error("The method \"" + callee_name + "\" isn't declared on base \"" + base_type.to_string() + "\".", p_call->line);
|
|
return DataType();
|
|
}
|
|
|
|
default_args_count = Variant::get_method_default_arguments(base_type.builtin_type, callee_name).size();
|
|
const Vector<Variant::Type> &var_arg_types = Variant::get_method_argument_types(base_type.builtin_type, callee_name);
|
|
|
|
for (int i = 0; i < var_arg_types.size(); i++) {
|
|
DataType argtype;
|
|
if (var_arg_types[i] != Variant::NIL) {
|
|
argtype.has_type = true;
|
|
argtype.kind = DataType::BUILTIN;
|
|
argtype.builtin_type = var_arg_types[i];
|
|
}
|
|
arg_types.push_back(argtype);
|
|
}
|
|
}
|
|
|
|
bool rets = false;
|
|
return_type.has_type = true;
|
|
return_type.kind = DataType::BUILTIN;
|
|
return_type.builtin_type = Variant::get_method_return_type(base_type.builtin_type, callee_name, &rets);
|
|
// If the method returns, but it might return any type, (Variant::NIL), pretend we don't know the type.
|
|
// At least make sure we know that it returns
|
|
if (rets && return_type.builtin_type == Variant::NIL) {
|
|
return_type.has_type = false;
|
|
}
|
|
break;
|
|
}
|
|
|
|
DataType original_type = base_type;
|
|
bool is_initializer = callee_name == "new";
|
|
bool is_get_script = p_call->arguments[0]->type == Node::TYPE_SELF && callee_name == "get_script";
|
|
bool is_static = false;
|
|
bool valid = false;
|
|
|
|
if (is_initializer && original_type.is_meta_type) {
|
|
// Try to check it as initializer
|
|
base_type = original_type;
|
|
callee_name = "_init";
|
|
base_type.is_meta_type = false;
|
|
|
|
valid = _get_function_signature(base_type, callee_name, return_type, arg_types,
|
|
default_args_count, is_static, is_vararg);
|
|
|
|
return_type = original_type;
|
|
return_type.is_meta_type = false;
|
|
|
|
valid = true; // There's always an initializer, we can assume this is true
|
|
}
|
|
|
|
if (is_get_script) {
|
|
// get_script() can be considered a meta-type.
|
|
return_type.kind = DataType::CLASS;
|
|
return_type.class_type = static_cast<ClassNode *>(head);
|
|
return_type.is_meta_type = true;
|
|
valid = true;
|
|
}
|
|
|
|
if (!valid) {
|
|
base_type = original_type;
|
|
return_type = DataType();
|
|
valid = _get_function_signature(base_type, callee_name, return_type, arg_types,
|
|
default_args_count, is_static, is_vararg);
|
|
}
|
|
|
|
if (!valid) {
|
|
#ifdef DEBUG_ENABLED
|
|
if (p_call->arguments[0]->type == Node::TYPE_SELF) {
|
|
_set_error("The method \"" + callee_name + "\" isn't declared in the current class.", p_call->line);
|
|
return DataType();
|
|
}
|
|
DataType tmp_type;
|
|
valid = _get_member_type(original_type, func_id->name, tmp_type);
|
|
if (valid) {
|
|
if (tmp_type.is_constant) {
|
|
_add_warning(GDScriptWarning::CONSTANT_USED_AS_FUNCTION, p_call->line, callee_name, original_type.to_string());
|
|
} else {
|
|
_add_warning(GDScriptWarning::PROPERTY_USED_AS_FUNCTION, p_call->line, callee_name, original_type.to_string());
|
|
}
|
|
}
|
|
_add_warning(GDScriptWarning::UNSAFE_METHOD_ACCESS, p_call->line, callee_name, original_type.to_string());
|
|
_mark_line_as_unsafe(p_call->line);
|
|
#endif // DEBUG_ENABLED
|
|
return DataType();
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (current_function && !for_completion && !is_static && p_call->arguments[0]->type == Node::TYPE_SELF && current_function->_static) {
|
|
_set_error("Can't call non-static function from a static function.", p_call->line);
|
|
return DataType();
|
|
}
|
|
|
|
if (check_types && !is_static && !is_initializer && base_type.is_meta_type) {
|
|
_set_error("Non-static function \"" + String(callee_name) + "\" can only be called from an instance.", p_call->line);
|
|
return DataType();
|
|
}
|
|
|
|
// Check signal emission for warnings
|
|
if (callee_name == "emit_signal" && p_call->op == OperatorNode::OP_CALL && p_call->arguments[0]->type == Node::TYPE_SELF && p_call->arguments.size() >= 3 && p_call->arguments[2]->type == Node::TYPE_CONSTANT) {
|
|
ConstantNode *sig = static_cast<ConstantNode *>(p_call->arguments[2]);
|
|
String emitted = sig->value.get_type() == Variant::STRING ? sig->value.operator String() : "";
|
|
for (int i = 0; i < current_class->_signals.size(); i++) {
|
|
if (current_class->_signals[i].name == emitted) {
|
|
current_class->_signals.write[i].emissions += 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
} break;
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (!check_types) {
|
|
return return_type;
|
|
}
|
|
|
|
if (arg_count < arg_types.size() - default_args_count) {
|
|
_set_error("Too few arguments for \"" + callee_name + "()\" call. Expected at least " + itos(arg_types.size() - default_args_count) + ".", p_call->line);
|
|
return return_type;
|
|
}
|
|
if (!is_vararg && arg_count > arg_types.size()) {
|
|
_set_error("Too many arguments for \"" + callee_name + "()\" call. Expected at most " + itos(arg_types.size()) + ".", p_call->line);
|
|
return return_type;
|
|
}
|
|
|
|
int arg_diff = p_call->arguments.size() - arg_count;
|
|
for (int i = arg_diff; i < p_call->arguments.size(); i++) {
|
|
DataType par_type = _reduce_node_type(p_call->arguments[i]);
|
|
|
|
if ((i - arg_diff) >= arg_types.size()) {
|
|
continue;
|
|
}
|
|
|
|
DataType arg_type = arg_types[i - arg_diff];
|
|
|
|
if (!par_type.has_type) {
|
|
_mark_line_as_unsafe(p_call->line);
|
|
if (par_type.may_yield && p_call->arguments[i]->type == Node::TYPE_OPERATOR) {
|
|
_add_warning(GDScriptWarning::FUNCTION_MAY_YIELD, p_call->line, _find_function_name(static_cast<OperatorNode *>(p_call->arguments[i])));
|
|
}
|
|
} else if (!_is_type_compatible(arg_types[i - arg_diff], par_type, true)) {
|
|
// Supertypes are acceptable for dynamic compliance
|
|
if (!_is_type_compatible(par_type, arg_types[i - arg_diff])) {
|
|
_set_error("At \"" + callee_name + "()\" call, argument " + itos(i - arg_diff + 1) + ". The passed argument's type (" +
|
|
par_type.to_string() + ") doesn't match the function's expected argument type (" +
|
|
arg_types[i - arg_diff].to_string() + ").",
|
|
p_call->line);
|
|
return DataType();
|
|
} else {
|
|
_mark_line_as_unsafe(p_call->line);
|
|
}
|
|
} else {
|
|
if (arg_type.kind == DataType::BUILTIN && arg_type.builtin_type == Variant::INT && par_type.kind == DataType::BUILTIN && par_type.builtin_type == Variant::REAL) {
|
|
_add_warning(GDScriptWarning::NARROWING_CONVERSION, p_call->line, callee_name);
|
|
}
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
return return_type;
|
|
}
|
|
|
|
bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringName &p_member, DataType &r_member_type, bool *r_is_const) const {
|
|
DataType base_type = p_base_type;
|
|
|
|
// Check classes in current file
|
|
ClassNode *base = nullptr;
|
|
if (base_type.kind == DataType::CLASS) {
|
|
base = base_type.class_type;
|
|
}
|
|
|
|
while (base) {
|
|
if (base->constant_expressions.has(p_member)) {
|
|
if (r_is_const) {
|
|
*r_is_const = true;
|
|
}
|
|
r_member_type = base->constant_expressions[p_member].expression->get_datatype();
|
|
return true;
|
|
}
|
|
|
|
if (!base_type.is_meta_type) {
|
|
for (int i = 0; i < base->variables.size(); i++) {
|
|
if (base->variables[i].identifier == p_member) {
|
|
r_member_type = base->variables[i].data_type;
|
|
base->variables.write[i].usages += 1;
|
|
return true;
|
|
}
|
|
}
|
|
} else {
|
|
for (int i = 0; i < base->subclasses.size(); i++) {
|
|
ClassNode *c = base->subclasses[i];
|
|
if (c->name == p_member) {
|
|
DataType class_type;
|
|
class_type.has_type = true;
|
|
class_type.is_constant = true;
|
|
class_type.is_meta_type = true;
|
|
class_type.kind = DataType::CLASS;
|
|
class_type.class_type = c;
|
|
r_member_type = class_type;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
base_type = base->base_type;
|
|
if (base_type.kind == DataType::CLASS) {
|
|
base = base_type.class_type;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
Ref<GDScript> gds;
|
|
if (base_type.kind == DataType::GDSCRIPT) {
|
|
gds = base_type.script_type;
|
|
if (gds.is_null() || !gds->is_valid()) {
|
|
// GDScript wasn't properly compíled, don't bother trying
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Ref<Script> scr;
|
|
if (base_type.kind == DataType::SCRIPT) {
|
|
scr = base_type.script_type;
|
|
}
|
|
|
|
StringName native;
|
|
if (base_type.kind == DataType::NATIVE) {
|
|
native = base_type.native_type;
|
|
}
|
|
|
|
// Check GDScripts
|
|
while (gds.is_valid()) {
|
|
if (gds->get_constants().has(p_member)) {
|
|
Variant c = gds->get_constants()[p_member];
|
|
r_member_type = _type_from_variant(c);
|
|
return true;
|
|
}
|
|
|
|
if (!base_type.is_meta_type) {
|
|
if (gds->get_members().has(p_member)) {
|
|
r_member_type = _type_from_gdtype(gds->get_member_type(p_member));
|
|
return true;
|
|
}
|
|
}
|
|
|
|
native = gds->get_instance_base_type();
|
|
if (gds->get_base_script().is_valid()) {
|
|
gds = gds->get_base_script();
|
|
scr = gds->get_base_script();
|
|
bool is_meta = base_type.is_meta_type;
|
|
base_type = _type_from_variant(scr.operator Variant());
|
|
base_type.is_meta_type = is_meta;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
#define IS_USAGE_MEMBER(m_usage) (!(m_usage & (PROPERTY_USAGE_GROUP | PROPERTY_USAGE_CATEGORY)))
|
|
|
|
// Check other script types
|
|
while (scr.is_valid()) {
|
|
Map<StringName, Variant> constants;
|
|
scr->get_constants(&constants);
|
|
if (constants.has(p_member)) {
|
|
r_member_type = _type_from_variant(constants[p_member]);
|
|
return true;
|
|
}
|
|
|
|
List<PropertyInfo> properties;
|
|
scr->get_script_property_list(&properties);
|
|
for (List<PropertyInfo>::Element *E = properties.front(); E; E = E->next()) {
|
|
if (E->get().name == p_member && IS_USAGE_MEMBER(E->get().usage)) {
|
|
r_member_type = _type_from_property(E->get());
|
|
return true;
|
|
}
|
|
}
|
|
|
|
base_type = _type_from_variant(scr.operator Variant());
|
|
native = scr->get_instance_base_type();
|
|
scr = scr->get_base_script();
|
|
}
|
|
|
|
if (native == StringName()) {
|
|
// Empty native class, might happen in some Script implementations
|
|
// Just ignore it
|
|
return false;
|
|
}
|
|
|
|
// Check ClassDB
|
|
if (!ClassDB::class_exists(native)) {
|
|
native = "_" + native.operator String();
|
|
}
|
|
if (!ClassDB::class_exists(native)) {
|
|
if (!check_types) {
|
|
return false;
|
|
}
|
|
ERR_FAIL_V_MSG(false, "Parser bug: Class \"" + String(native) + "\" not found.");
|
|
}
|
|
|
|
bool valid = false;
|
|
ClassDB::get_integer_constant(native, p_member, &valid);
|
|
if (valid) {
|
|
DataType ct;
|
|
ct.has_type = true;
|
|
ct.is_constant = true;
|
|
ct.kind = DataType::BUILTIN;
|
|
ct.builtin_type = Variant::INT;
|
|
r_member_type = ct;
|
|
return true;
|
|
}
|
|
|
|
if (!base_type.is_meta_type) {
|
|
List<PropertyInfo> properties;
|
|
ClassDB::get_property_list(native, &properties);
|
|
for (List<PropertyInfo>::Element *E = properties.front(); E; E = E->next()) {
|
|
if (E->get().name == p_member && IS_USAGE_MEMBER(E->get().usage)) {
|
|
// Check if a getter exists
|
|
StringName getter_name = ClassDB::get_property_getter(native, p_member);
|
|
if (getter_name != StringName()) {
|
|
// Use the getter return type
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
MethodBind *getter_method = ClassDB::get_method(native, getter_name);
|
|
if (getter_method) {
|
|
r_member_type = _type_from_property(getter_method->get_return_info());
|
|
} else {
|
|
r_member_type = DataType();
|
|
}
|
|
#else
|
|
r_member_type = DataType();
|
|
#endif
|
|
} else {
|
|
r_member_type = _type_from_property(E->get());
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the base is a script, it might be trying to access members of the Script class itself
|
|
if (p_base_type.is_meta_type && (p_base_type.kind == DataType::SCRIPT || p_base_type.kind == DataType::GDSCRIPT)) {
|
|
native = p_base_type.script_type->get_class_name();
|
|
ClassDB::get_integer_constant(native, p_member, &valid);
|
|
if (valid) {
|
|
DataType ct;
|
|
ct.has_type = true;
|
|
ct.is_constant = true;
|
|
ct.kind = DataType::BUILTIN;
|
|
ct.builtin_type = Variant::INT;
|
|
r_member_type = ct;
|
|
return true;
|
|
}
|
|
|
|
List<PropertyInfo> properties;
|
|
ClassDB::get_property_list(native, &properties);
|
|
for (List<PropertyInfo>::Element *E = properties.front(); E; E = E->next()) {
|
|
if (E->get().name == p_member && IS_USAGE_MEMBER(E->get().usage)) {
|
|
// Check if a getter exists
|
|
StringName getter_name = ClassDB::get_property_getter(native, p_member);
|
|
if (getter_name != StringName()) {
|
|
// Use the getter return type
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
MethodBind *getter_method = ClassDB::get_method(native, getter_name);
|
|
if (getter_method) {
|
|
r_member_type = _type_from_property(getter_method->get_return_info());
|
|
} else {
|
|
r_member_type = DataType();
|
|
}
|
|
#else
|
|
r_member_type = DataType();
|
|
#endif
|
|
} else {
|
|
r_member_type = _type_from_property(E->get());
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
#undef IS_USAGE_MEMBER
|
|
|
|
return false;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::_reduce_identifier_type(const DataType *p_base_type, const StringName &p_identifier, int p_line, bool p_is_indexing) {
|
|
if (p_base_type && !p_base_type->has_type) {
|
|
return DataType();
|
|
}
|
|
|
|
DataType base_type;
|
|
DataType member_type;
|
|
|
|
if (!p_base_type) {
|
|
base_type.has_type = true;
|
|
base_type.is_constant = true;
|
|
base_type.kind = DataType::CLASS;
|
|
base_type.class_type = current_class;
|
|
} else {
|
|
base_type = DataType(*p_base_type);
|
|
}
|
|
|
|
bool is_const = false;
|
|
if (_get_member_type(base_type, p_identifier, member_type, &is_const)) {
|
|
if (!p_base_type && current_function && current_function->_static && !is_const) {
|
|
_set_error("Can't access member variable (\"" + p_identifier.operator String() + "\") from a static function.", p_line);
|
|
return DataType();
|
|
}
|
|
return member_type;
|
|
}
|
|
|
|
if (p_is_indexing) {
|
|
// Don't look for globals since this is an indexed identifier
|
|
return DataType();
|
|
}
|
|
|
|
if (!p_base_type) {
|
|
// Possibly this is a global, check before failing
|
|
|
|
if (ClassDB::class_exists(p_identifier) || ClassDB::class_exists("_" + p_identifier.operator String())) {
|
|
DataType result;
|
|
result.has_type = true;
|
|
result.is_constant = true;
|
|
result.is_meta_type = true;
|
|
if (Engine::get_singleton()->has_singleton(p_identifier) || Engine::get_singleton()->has_singleton("_" + p_identifier.operator String())) {
|
|
result.is_meta_type = false;
|
|
}
|
|
result.kind = DataType::NATIVE;
|
|
result.native_type = p_identifier;
|
|
return result;
|
|
}
|
|
|
|
ClassNode *outer_class = current_class;
|
|
while (outer_class) {
|
|
if (outer_class->name == p_identifier) {
|
|
DataType result;
|
|
result.has_type = true;
|
|
result.is_constant = true;
|
|
result.is_meta_type = true;
|
|
result.kind = DataType::CLASS;
|
|
result.class_type = outer_class;
|
|
return result;
|
|
}
|
|
if (outer_class->constant_expressions.has(p_identifier)) {
|
|
return outer_class->constant_expressions[p_identifier].type;
|
|
}
|
|
for (int i = 0; i < outer_class->subclasses.size(); i++) {
|
|
if (outer_class->subclasses[i] == current_class) {
|
|
continue;
|
|
}
|
|
if (outer_class->subclasses[i]->name == p_identifier) {
|
|
DataType result;
|
|
result.has_type = true;
|
|
result.is_constant = true;
|
|
result.is_meta_type = true;
|
|
result.kind = DataType::CLASS;
|
|
result.class_type = outer_class->subclasses[i];
|
|
return result;
|
|
}
|
|
}
|
|
outer_class = outer_class->owner;
|
|
}
|
|
|
|
if (ScriptServer::is_global_class(p_identifier)) {
|
|
Ref<Script> scr = ResourceLoader::load(ScriptServer::get_global_class_path(p_identifier));
|
|
if (scr.is_valid()) {
|
|
DataType result;
|
|
result.has_type = true;
|
|
result.script_type = scr;
|
|
result.is_constant = true;
|
|
result.is_meta_type = true;
|
|
Ref<GDScript> gds = scr;
|
|
if (gds.is_valid()) {
|
|
if (!gds->is_valid()) {
|
|
_set_error("The class \"" + p_identifier + "\" couldn't be fully loaded (script error or cyclic dependency).");
|
|
return DataType();
|
|
}
|
|
result.kind = DataType::GDSCRIPT;
|
|
} else {
|
|
result.kind = DataType::SCRIPT;
|
|
}
|
|
return result;
|
|
}
|
|
_set_error("The class \"" + p_identifier + "\" was found in global scope, but its script couldn't be loaded.");
|
|
return DataType();
|
|
}
|
|
|
|
if (GDScriptLanguage::get_singleton()->get_global_map().has(p_identifier)) {
|
|
int idx = GDScriptLanguage::get_singleton()->get_global_map()[p_identifier];
|
|
Variant g = GDScriptLanguage::get_singleton()->get_global_array()[idx];
|
|
return _type_from_variant(g);
|
|
}
|
|
|
|
if (GDScriptLanguage::get_singleton()->get_named_globals_map().has(p_identifier)) {
|
|
Variant g = GDScriptLanguage::get_singleton()->get_named_globals_map()[p_identifier];
|
|
return _type_from_variant(g);
|
|
}
|
|
|
|
// Non-tool singletons aren't loaded, check project settings
|
|
List<PropertyInfo> props;
|
|
ProjectSettings::get_singleton()->get_property_list(&props);
|
|
|
|
for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
|
|
String s = E->get().name;
|
|
if (!s.begins_with("autoload/")) {
|
|
continue;
|
|
}
|
|
String name = s.get_slice("/", 1);
|
|
if (name == p_identifier) {
|
|
String script = ProjectSettings::get_singleton()->get(s);
|
|
if (script.begins_with("*")) {
|
|
script = script.right(1);
|
|
}
|
|
if (!script.begins_with("res://")) {
|
|
script = "res://" + script;
|
|
}
|
|
Ref<Script> singleton = ResourceLoader::load(script);
|
|
if (singleton.is_valid()) {
|
|
DataType result;
|
|
result.has_type = true;
|
|
result.is_constant = true;
|
|
result.script_type = singleton;
|
|
|
|
Ref<GDScript> gds = singleton;
|
|
if (gds.is_valid()) {
|
|
if (!gds->is_valid()) {
|
|
_set_error("Couldn't fully load the singleton script \"" + p_identifier + "\" (possible cyclic reference or parse error).", p_line);
|
|
return DataType();
|
|
}
|
|
result.kind = DataType::GDSCRIPT;
|
|
} else {
|
|
result.kind = DataType::SCRIPT;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// This means looking in the current class, which type is always known
|
|
_set_error("The identifier \"" + p_identifier.operator String() + "\" isn't declared in the current scope.", p_line);
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
{
|
|
DataType tmp_type;
|
|
List<DataType> arg_types;
|
|
int argcount;
|
|
bool _static;
|
|
bool vararg;
|
|
if (_get_function_signature(base_type, p_identifier, tmp_type, arg_types, argcount, _static, vararg)) {
|
|
_add_warning(GDScriptWarning::FUNCTION_USED_AS_PROPERTY, p_line, p_identifier.operator String(), base_type.to_string());
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
_mark_line_as_unsafe(p_line);
|
|
return DataType();
|
|
}
|
|
|
|
void GDScriptParser::_check_class_level_types(ClassNode *p_class) {
|
|
// Names of internal object properties that we check to avoid overriding them.
|
|
// "__meta__" could also be in here, but since it doesn't really affect object metadata,
|
|
// it is okay to override it on script.
|
|
StringName script_name = CoreStringNames::get_singleton()->_script;
|
|
|
|
_mark_line_as_safe(p_class->line);
|
|
|
|
// Constants
|
|
for (Map<StringName, ClassNode::Constant>::Element *E = p_class->constant_expressions.front(); E; E = E->next()) {
|
|
ClassNode::Constant &c = E->get();
|
|
_mark_line_as_safe(c.expression->line);
|
|
DataType cont = _resolve_type(c.type, c.expression->line);
|
|
DataType expr = _resolve_type(c.expression->get_datatype(), c.expression->line);
|
|
|
|
if (check_types && !_is_type_compatible(cont, expr)) {
|
|
_set_error("The constant value type (" + expr.to_string() + ") isn't compatible with declared type (" + cont.to_string() + ").",
|
|
c.expression->line);
|
|
return;
|
|
}
|
|
|
|
expr.is_constant = true;
|
|
c.type = expr;
|
|
c.expression->set_datatype(expr);
|
|
|
|
DataType tmp;
|
|
const StringName &constant_name = E->key();
|
|
if (constant_name == script_name || _get_member_type(p_class->base_type, constant_name, tmp)) {
|
|
_set_error("The member \"" + String(constant_name) + "\" already exists in a parent class.", c.expression->line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Function declarations
|
|
for (int i = 0; i < p_class->static_functions.size(); i++) {
|
|
_check_function_types(p_class->static_functions[i]);
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < p_class->functions.size(); i++) {
|
|
_check_function_types(p_class->functions[i]);
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Class variables
|
|
for (int i = 0; i < p_class->variables.size(); i++) {
|
|
ClassNode::Member &v = p_class->variables.write[i];
|
|
|
|
DataType tmp;
|
|
if (v.identifier == script_name || _get_member_type(p_class->base_type, v.identifier, tmp)) {
|
|
_set_error("The member \"" + String(v.identifier) + "\" already exists in a parent class.", v.line);
|
|
return;
|
|
}
|
|
|
|
_mark_line_as_safe(v.line);
|
|
v.data_type = _resolve_type(v.data_type, v.line);
|
|
v.initial_assignment->arguments[0]->set_datatype(v.data_type);
|
|
|
|
if (v.expression) {
|
|
DataType expr_type = _reduce_node_type(v.expression);
|
|
|
|
if (check_types && !_is_type_compatible(v.data_type, expr_type)) {
|
|
// Try supertype test
|
|
if (_is_type_compatible(expr_type, v.data_type)) {
|
|
_mark_line_as_unsafe(v.line);
|
|
} else {
|
|
// Try with implicit conversion
|
|
if (v.data_type.kind != DataType::BUILTIN || !_is_type_compatible(v.data_type, expr_type, true)) {
|
|
_set_error("The assigned expression's type (" + expr_type.to_string() + ") doesn't match the variable's type (" +
|
|
v.data_type.to_string() + ").",
|
|
v.line);
|
|
return;
|
|
}
|
|
|
|
// Replace assignment with implicit conversion
|
|
BuiltInFunctionNode *convert = alloc_node<BuiltInFunctionNode>();
|
|
convert->line = v.line;
|
|
convert->function = GDScriptFunctions::TYPE_CONVERT;
|
|
|
|
ConstantNode *tgt_type = alloc_node<ConstantNode>();
|
|
tgt_type->line = v.line;
|
|
tgt_type->value = (int)v.data_type.builtin_type;
|
|
|
|
OperatorNode *convert_call = alloc_node<OperatorNode>();
|
|
convert_call->line = v.line;
|
|
convert_call->op = OperatorNode::OP_CALL;
|
|
convert_call->arguments.push_back(convert);
|
|
convert_call->arguments.push_back(v.expression);
|
|
convert_call->arguments.push_back(tgt_type);
|
|
|
|
v.expression = convert_call;
|
|
v.initial_assignment->arguments.write[1] = convert_call;
|
|
}
|
|
}
|
|
|
|
if (v.data_type.infer_type) {
|
|
if (!expr_type.has_type) {
|
|
_set_error("The assigned value doesn't have a set type; the variable type can't be inferred.", v.line);
|
|
return;
|
|
}
|
|
if (expr_type.kind == DataType::BUILTIN && expr_type.builtin_type == Variant::NIL) {
|
|
_set_error("The variable type cannot be inferred because its value is \"null\".", v.line);
|
|
return;
|
|
}
|
|
v.data_type = expr_type;
|
|
v.data_type.is_constant = false;
|
|
}
|
|
}
|
|
|
|
// Check export hint
|
|
if (v.data_type.has_type && v._export.type != Variant::NIL) {
|
|
DataType export_type = _type_from_property(v._export);
|
|
if (!_is_type_compatible(v.data_type, export_type, true)) {
|
|
_set_error("The export hint's type (" + export_type.to_string() + ") doesn't match the variable's type (" +
|
|
v.data_type.to_string() + ").",
|
|
v.line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Setter and getter
|
|
if (v.setter == StringName() && v.getter == StringName()) {
|
|
continue;
|
|
}
|
|
|
|
bool found_getter = false;
|
|
bool found_setter = false;
|
|
for (int j = 0; j < p_class->functions.size(); j++) {
|
|
if (v.setter == p_class->functions[j]->name) {
|
|
found_setter = true;
|
|
FunctionNode *setter = p_class->functions[j];
|
|
|
|
if (setter->get_required_argument_count() != 1 &&
|
|
!(setter->get_required_argument_count() == 0 && setter->default_values.size() > 0)) {
|
|
_set_error("The setter function needs to receive exactly 1 argument. See \"" + setter->name +
|
|
"()\" definition at line " + itos(setter->line) + ".",
|
|
v.line);
|
|
return;
|
|
}
|
|
if (!_is_type_compatible(v.data_type, setter->argument_types[0])) {
|
|
_set_error("The setter argument's type (" + setter->argument_types[0].to_string() +
|
|
") doesn't match the variable's type (" + v.data_type.to_string() + "). See \"" +
|
|
setter->name + "()\" definition at line " + itos(setter->line) + ".",
|
|
v.line);
|
|
return;
|
|
}
|
|
continue;
|
|
}
|
|
if (v.getter == p_class->functions[j]->name) {
|
|
found_getter = true;
|
|
FunctionNode *getter = p_class->functions[j];
|
|
|
|
if (getter->get_required_argument_count() != 0) {
|
|
_set_error("The getter function can't receive arguments. See \"" + getter->name +
|
|
"()\" definition at line " + itos(getter->line) + ".",
|
|
v.line);
|
|
return;
|
|
}
|
|
if (!_is_type_compatible(v.data_type, getter->get_datatype())) {
|
|
_set_error("The getter return type (" + getter->get_datatype().to_string() +
|
|
") doesn't match the variable's type (" + v.data_type.to_string() +
|
|
"). See \"" + getter->name + "()\" definition at line " + itos(getter->line) + ".",
|
|
v.line);
|
|
return;
|
|
}
|
|
}
|
|
if (found_getter && found_setter) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((found_getter || v.getter == StringName()) && (found_setter || v.setter == StringName())) {
|
|
continue;
|
|
}
|
|
|
|
// Check for static functions
|
|
for (int j = 0; j < p_class->static_functions.size(); j++) {
|
|
if (v.setter == p_class->static_functions[j]->name) {
|
|
FunctionNode *setter = p_class->static_functions[j];
|
|
_set_error("The setter can't be a static function. See \"" + setter->name + "()\" definition at line " + itos(setter->line) + ".", v.line);
|
|
return;
|
|
}
|
|
if (v.getter == p_class->static_functions[j]->name) {
|
|
FunctionNode *getter = p_class->static_functions[j];
|
|
_set_error("The getter can't be a static function. See \"" + getter->name + "()\" definition at line " + itos(getter->line) + ".", v.line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!found_setter && v.setter != StringName()) {
|
|
_set_error("The setter function isn't defined.", v.line);
|
|
return;
|
|
}
|
|
|
|
if (!found_getter && v.getter != StringName()) {
|
|
_set_error("The getter function isn't defined.", v.line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Signals
|
|
DataType base = p_class->base_type;
|
|
|
|
while (base.kind == DataType::CLASS) {
|
|
ClassNode *base_class = base.class_type;
|
|
for (int i = 0; i < p_class->_signals.size(); i++) {
|
|
for (int j = 0; j < base_class->_signals.size(); j++) {
|
|
if (p_class->_signals[i].name == base_class->_signals[j].name) {
|
|
_set_error("The signal \"" + p_class->_signals[i].name + "\" already exists in a parent class.", p_class->_signals[i].line);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
base = base_class->base_type;
|
|
}
|
|
|
|
StringName native;
|
|
if (base.kind == DataType::GDSCRIPT || base.kind == DataType::SCRIPT) {
|
|
Ref<Script> scr = base.script_type;
|
|
if (scr.is_valid() && scr->is_valid()) {
|
|
native = scr->get_instance_base_type();
|
|
for (int i = 0; i < p_class->_signals.size(); i++) {
|
|
if (scr->has_script_signal(p_class->_signals[i].name)) {
|
|
_set_error("The signal \"" + p_class->_signals[i].name + "\" already exists in a parent class.", p_class->_signals[i].line);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
} else if (base.kind == DataType::NATIVE) {
|
|
native = base.native_type;
|
|
}
|
|
|
|
if (native != StringName()) {
|
|
for (int i = 0; i < p_class->_signals.size(); i++) {
|
|
if (ClassDB::has_signal(native, p_class->_signals[i].name)) {
|
|
_set_error("The signal \"" + p_class->_signals[i].name + "\" already exists in a parent class.", p_class->_signals[i].line);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Inner classes
|
|
for (int i = 0; i < p_class->subclasses.size(); i++) {
|
|
current_class = p_class->subclasses[i];
|
|
_check_class_level_types(current_class);
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
current_class = p_class;
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::_check_function_types(FunctionNode *p_function) {
|
|
p_function->return_type = _resolve_type(p_function->return_type, p_function->line);
|
|
|
|
// Arguments
|
|
int defaults_ofs = p_function->arguments.size() - p_function->default_values.size();
|
|
for (int i = 0; i < p_function->arguments.size(); i++) {
|
|
if (i < defaults_ofs) {
|
|
p_function->argument_types.write[i] = _resolve_type(p_function->argument_types[i], p_function->line);
|
|
} else {
|
|
if (p_function->default_values[i - defaults_ofs]->type != Node::TYPE_OPERATOR) {
|
|
_set_error("Parser bug: invalid argument default value.", p_function->line, p_function->column);
|
|
return;
|
|
}
|
|
|
|
OperatorNode *op = static_cast<OperatorNode *>(p_function->default_values[i - defaults_ofs]);
|
|
|
|
if (op->op != OperatorNode::OP_ASSIGN || op->arguments.size() != 2) {
|
|
_set_error("Parser bug: invalid argument default value operation.", p_function->line);
|
|
return;
|
|
}
|
|
|
|
DataType def_type = _reduce_node_type(op->arguments[1]);
|
|
|
|
if (p_function->argument_types[i].infer_type) {
|
|
def_type.is_constant = false;
|
|
p_function->argument_types.write[i] = def_type;
|
|
} else {
|
|
p_function->argument_types.write[i] = _resolve_type(p_function->argument_types[i], p_function->line);
|
|
|
|
if (!_is_type_compatible(p_function->argument_types[i], def_type, true)) {
|
|
String arg_name = p_function->arguments[i];
|
|
_set_error("Value type (" + def_type.to_string() + ") doesn't match the type of argument '" +
|
|
arg_name + "' (" + p_function->argument_types[i].to_string() + ").",
|
|
p_function->line);
|
|
}
|
|
}
|
|
}
|
|
#ifdef DEBUG_ENABLED
|
|
if (p_function->arguments_usage[i] == 0 && !p_function->arguments[i].operator String().begins_with("_")) {
|
|
_add_warning(GDScriptWarning::UNUSED_ARGUMENT, p_function->line, p_function->name, p_function->arguments[i].operator String());
|
|
}
|
|
for (int j = 0; j < current_class->variables.size(); j++) {
|
|
if (current_class->variables[j].identifier == p_function->arguments[i]) {
|
|
_add_warning(GDScriptWarning::SHADOWED_VARIABLE, p_function->line, p_function->arguments[i], itos(current_class->variables[j].line));
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
|
|
if (!(p_function->name == "_init")) {
|
|
// Signature for the initializer may vary
|
|
#ifdef DEBUG_ENABLED
|
|
DataType return_type;
|
|
List<DataType> arg_types;
|
|
int default_arg_count = 0;
|
|
bool _static = false;
|
|
bool vararg = false;
|
|
|
|
DataType base_type = current_class->base_type;
|
|
if (_get_function_signature(base_type, p_function->name, return_type, arg_types, default_arg_count, _static, vararg)) {
|
|
bool valid = _static == p_function->_static;
|
|
valid = valid && return_type == p_function->return_type;
|
|
int argsize_diff = p_function->arguments.size() - arg_types.size();
|
|
valid = valid && argsize_diff >= 0;
|
|
valid = valid && p_function->default_values.size() >= default_arg_count + argsize_diff;
|
|
int i = 0;
|
|
for (List<DataType>::Element *E = arg_types.front(); valid && E; E = E->next()) {
|
|
valid = valid && E->get() == p_function->argument_types[i++];
|
|
}
|
|
|
|
if (!valid) {
|
|
String parent_signature = return_type.has_type ? return_type.to_string() : "Variant";
|
|
if (parent_signature == "null") {
|
|
parent_signature = "void";
|
|
}
|
|
parent_signature += " " + p_function->name + "(";
|
|
if (arg_types.size()) {
|
|
int j = 0;
|
|
for (List<DataType>::Element *E = arg_types.front(); E; E = E->next()) {
|
|
if (E != arg_types.front()) {
|
|
parent_signature += ", ";
|
|
}
|
|
String arg = E->get().to_string();
|
|
if (arg == "null" || arg == "var") {
|
|
arg = "Variant";
|
|
}
|
|
parent_signature += arg;
|
|
if (j == arg_types.size() - default_arg_count) {
|
|
parent_signature += "=default";
|
|
}
|
|
|
|
j++;
|
|
}
|
|
}
|
|
parent_signature += ")";
|
|
_set_error("The function signature doesn't match the parent. Parent signature is: \"" + parent_signature + "\".", p_function->line);
|
|
return;
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
} else {
|
|
if (p_function->return_type.has_type && (p_function->return_type.kind != DataType::BUILTIN || p_function->return_type.builtin_type != Variant::NIL)) {
|
|
_set_error("The constructor can't return a value.", p_function->line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (p_function->return_type.has_type && (p_function->return_type.kind != DataType::BUILTIN || p_function->return_type.builtin_type != Variant::NIL)) {
|
|
if (!p_function->body->has_return) {
|
|
_set_error("A non-void function must return a value in all possible paths.", p_function->line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (p_function->has_yield) {
|
|
// yield() will make the function return a GDScriptFunctionState, so the type is ambiguous
|
|
p_function->return_type.has_type = false;
|
|
p_function->return_type.may_yield = true;
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::_check_class_blocks_types(ClassNode *p_class) {
|
|
// Function blocks
|
|
for (int i = 0; i < p_class->static_functions.size(); i++) {
|
|
current_function = p_class->static_functions[i];
|
|
current_block = current_function->body;
|
|
_mark_line_as_safe(current_function->line);
|
|
_check_block_types(current_block);
|
|
current_block = nullptr;
|
|
current_function = nullptr;
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < p_class->functions.size(); i++) {
|
|
current_function = p_class->functions[i];
|
|
current_block = current_function->body;
|
|
_mark_line_as_safe(current_function->line);
|
|
_check_block_types(current_block);
|
|
current_block = nullptr;
|
|
current_function = nullptr;
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
// Warnings
|
|
for (int i = 0; i < p_class->variables.size(); i++) {
|
|
if (p_class->variables[i].usages == 0) {
|
|
_add_warning(GDScriptWarning::UNUSED_CLASS_VARIABLE, p_class->variables[i].line, p_class->variables[i].identifier);
|
|
}
|
|
}
|
|
for (int i = 0; i < p_class->_signals.size(); i++) {
|
|
if (p_class->_signals[i].emissions == 0) {
|
|
_add_warning(GDScriptWarning::UNUSED_SIGNAL, p_class->_signals[i].line, p_class->_signals[i].name);
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
// Inner classes
|
|
for (int i = 0; i < p_class->subclasses.size(); i++) {
|
|
current_class = p_class->subclasses[i];
|
|
_check_class_blocks_types(current_class);
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
current_class = p_class;
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
static String _find_function_name(const GDScriptParser::OperatorNode *p_call) {
|
|
switch (p_call->arguments[0]->type) {
|
|
case GDScriptParser::Node::TYPE_TYPE: {
|
|
return Variant::get_type_name(static_cast<GDScriptParser::TypeNode *>(p_call->arguments[0])->vtype);
|
|
} break;
|
|
case GDScriptParser::Node::TYPE_BUILT_IN_FUNCTION: {
|
|
return GDScriptFunctions::get_func_name(static_cast<GDScriptParser::BuiltInFunctionNode *>(p_call->arguments[0])->function);
|
|
} break;
|
|
default: {
|
|
int id_index = p_call->op == GDScriptParser::OperatorNode::OP_PARENT_CALL ? 0 : 1;
|
|
if (p_call->arguments.size() > id_index && p_call->arguments[id_index]->type == GDScriptParser::Node::TYPE_IDENTIFIER) {
|
|
return static_cast<GDScriptParser::IdentifierNode *>(p_call->arguments[id_index])->name;
|
|
}
|
|
} break;
|
|
}
|
|
return String();
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
void GDScriptParser::_check_block_types(BlockNode *p_block) {
|
|
Node *last_var_assign = nullptr;
|
|
|
|
// Check each statement
|
|
for (int z = 0; z < p_block->statements.size(); z++) {
|
|
Node *statement = p_block->statements[z];
|
|
switch (statement->type) {
|
|
case Node::TYPE_NEWLINE:
|
|
case Node::TYPE_BREAKPOINT: {
|
|
// Nothing to do
|
|
} break;
|
|
case Node::TYPE_ASSERT: {
|
|
AssertNode *an = static_cast<AssertNode *>(statement);
|
|
_mark_line_as_safe(an->line);
|
|
_reduce_node_type(an->condition);
|
|
_reduce_node_type(an->message);
|
|
} break;
|
|
case Node::TYPE_LOCAL_VAR: {
|
|
LocalVarNode *lv = static_cast<LocalVarNode *>(statement);
|
|
lv->datatype = _resolve_type(lv->datatype, lv->line);
|
|
_mark_line_as_safe(lv->line);
|
|
|
|
last_var_assign = lv->assign;
|
|
if (lv->assign) {
|
|
lv->assign_op->arguments[0]->set_datatype(lv->datatype);
|
|
DataType assign_type = _reduce_node_type(lv->assign);
|
|
#ifdef DEBUG_ENABLED
|
|
if (assign_type.has_type && assign_type.kind == DataType::BUILTIN && assign_type.builtin_type == Variant::NIL) {
|
|
if (lv->assign->type == Node::TYPE_OPERATOR) {
|
|
OperatorNode *call = static_cast<OperatorNode *>(lv->assign);
|
|
if (call->op == OperatorNode::OP_CALL || call->op == OperatorNode::OP_PARENT_CALL) {
|
|
_add_warning(GDScriptWarning::VOID_ASSIGNMENT, lv->line, _find_function_name(call));
|
|
}
|
|
}
|
|
}
|
|
if (lv->datatype.has_type && assign_type.may_yield && lv->assign->type == Node::TYPE_OPERATOR) {
|
|
_add_warning(GDScriptWarning::FUNCTION_MAY_YIELD, lv->line, _find_function_name(static_cast<OperatorNode *>(lv->assign)));
|
|
}
|
|
for (int i = 0; i < current_class->variables.size(); i++) {
|
|
if (current_class->variables[i].identifier == lv->name) {
|
|
_add_warning(GDScriptWarning::SHADOWED_VARIABLE, lv->line, lv->name, itos(current_class->variables[i].line));
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
if (!_is_type_compatible(lv->datatype, assign_type)) {
|
|
// Try supertype test
|
|
if (_is_type_compatible(assign_type, lv->datatype)) {
|
|
_mark_line_as_unsafe(lv->line);
|
|
} else {
|
|
// Try implicit conversion
|
|
if (lv->datatype.kind != DataType::BUILTIN || !_is_type_compatible(lv->datatype, assign_type, true)) {
|
|
_set_error("The assigned value type (" + assign_type.to_string() + ") doesn't match the variable's type (" +
|
|
lv->datatype.to_string() + ").",
|
|
lv->line);
|
|
return;
|
|
}
|
|
// Replace assignment with implicit conversion
|
|
BuiltInFunctionNode *convert = alloc_node<BuiltInFunctionNode>();
|
|
convert->line = lv->line;
|
|
convert->function = GDScriptFunctions::TYPE_CONVERT;
|
|
|
|
ConstantNode *tgt_type = alloc_node<ConstantNode>();
|
|
tgt_type->line = lv->line;
|
|
tgt_type->value = (int)lv->datatype.builtin_type;
|
|
|
|
OperatorNode *convert_call = alloc_node<OperatorNode>();
|
|
convert_call->line = lv->line;
|
|
convert_call->op = OperatorNode::OP_CALL;
|
|
convert_call->arguments.push_back(convert);
|
|
convert_call->arguments.push_back(lv->assign);
|
|
convert_call->arguments.push_back(tgt_type);
|
|
|
|
lv->assign = convert_call;
|
|
lv->assign_op->arguments.write[1] = convert_call;
|
|
#ifdef DEBUG_ENABLED
|
|
if (lv->datatype.builtin_type == Variant::INT && assign_type.builtin_type == Variant::REAL) {
|
|
_add_warning(GDScriptWarning::NARROWING_CONVERSION, lv->line);
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
}
|
|
if (lv->datatype.infer_type) {
|
|
if (!assign_type.has_type) {
|
|
_set_error("The assigned value doesn't have a set type; the variable type can't be inferred.", lv->line);
|
|
return;
|
|
}
|
|
if (assign_type.kind == DataType::BUILTIN && assign_type.builtin_type == Variant::NIL) {
|
|
_set_error("The variable type cannot be inferred because its value is \"null\".", lv->line);
|
|
return;
|
|
}
|
|
lv->datatype = assign_type;
|
|
lv->datatype.is_constant = false;
|
|
}
|
|
if (lv->datatype.has_type && !assign_type.has_type) {
|
|
_mark_line_as_unsafe(lv->line);
|
|
}
|
|
}
|
|
} break;
|
|
case Node::TYPE_OPERATOR: {
|
|
OperatorNode *op = static_cast<OperatorNode *>(statement);
|
|
|
|
switch (op->op) {
|
|
case OperatorNode::OP_ASSIGN:
|
|
case OperatorNode::OP_ASSIGN_ADD:
|
|
case OperatorNode::OP_ASSIGN_SUB:
|
|
case OperatorNode::OP_ASSIGN_MUL:
|
|
case OperatorNode::OP_ASSIGN_DIV:
|
|
case OperatorNode::OP_ASSIGN_MOD:
|
|
case OperatorNode::OP_ASSIGN_SHIFT_LEFT:
|
|
case OperatorNode::OP_ASSIGN_SHIFT_RIGHT:
|
|
case OperatorNode::OP_ASSIGN_BIT_AND:
|
|
case OperatorNode::OP_ASSIGN_BIT_OR:
|
|
case OperatorNode::OP_ASSIGN_BIT_XOR: {
|
|
if (op->arguments.size() < 2) {
|
|
_set_error("Parser bug: operation without enough arguments.", op->line, op->column);
|
|
return;
|
|
}
|
|
|
|
if (op->arguments[1] == last_var_assign) {
|
|
// Assignment was already checked
|
|
break;
|
|
}
|
|
|
|
_mark_line_as_safe(op->line);
|
|
|
|
DataType lh_type = _reduce_node_type(op->arguments[0]);
|
|
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
|
|
if (check_types) {
|
|
if (!lh_type.has_type) {
|
|
if (op->arguments[0]->type == Node::TYPE_OPERATOR) {
|
|
_mark_line_as_unsafe(op->line);
|
|
}
|
|
}
|
|
if (lh_type.is_constant) {
|
|
_set_error("Can't assign a new value to a constant.", op->line);
|
|
return;
|
|
}
|
|
}
|
|
|
|
DataType rh_type;
|
|
if (op->op != OperatorNode::OP_ASSIGN) {
|
|
// Validate operation
|
|
DataType arg_type = _reduce_node_type(op->arguments[1]);
|
|
if (!arg_type.has_type) {
|
|
_mark_line_as_unsafe(op->line);
|
|
break;
|
|
}
|
|
|
|
Variant::Operator oper = _get_variant_operation(op->op);
|
|
bool valid = false;
|
|
rh_type = _get_operation_type(oper, lh_type, arg_type, valid);
|
|
|
|
if (check_types && !valid) {
|
|
_set_error("Invalid operand types (\"" + lh_type.to_string() + "\" and \"" + arg_type.to_string() +
|
|
"\") to assignment operator \"" + Variant::get_operator_name(oper) + "\".",
|
|
op->line);
|
|
return;
|
|
}
|
|
} else {
|
|
rh_type = _reduce_node_type(op->arguments[1]);
|
|
}
|
|
#ifdef DEBUG_ENABLED
|
|
if (rh_type.has_type && rh_type.kind == DataType::BUILTIN && rh_type.builtin_type == Variant::NIL) {
|
|
if (op->arguments[1]->type == Node::TYPE_OPERATOR) {
|
|
OperatorNode *call = static_cast<OperatorNode *>(op->arguments[1]);
|
|
if (call->op == OperatorNode::OP_CALL || call->op == OperatorNode::OP_PARENT_CALL) {
|
|
_add_warning(GDScriptWarning::VOID_ASSIGNMENT, op->line, _find_function_name(call));
|
|
}
|
|
}
|
|
}
|
|
if (lh_type.has_type && rh_type.may_yield && op->arguments[1]->type == Node::TYPE_OPERATOR) {
|
|
_add_warning(GDScriptWarning::FUNCTION_MAY_YIELD, op->line, _find_function_name(static_cast<OperatorNode *>(op->arguments[1])));
|
|
}
|
|
|
|
#endif // DEBUG_ENABLED
|
|
bool type_match = lh_type.has_type && rh_type.has_type;
|
|
if (check_types && !_is_type_compatible(lh_type, rh_type)) {
|
|
type_match = false;
|
|
|
|
// Try supertype test
|
|
if (_is_type_compatible(rh_type, lh_type)) {
|
|
_mark_line_as_unsafe(op->line);
|
|
} else {
|
|
// Try implicit conversion
|
|
if (lh_type.kind != DataType::BUILTIN || !_is_type_compatible(lh_type, rh_type, true)) {
|
|
_set_error("The assigned value's type (" + rh_type.to_string() + ") doesn't match the variable's type (" +
|
|
lh_type.to_string() + ").",
|
|
op->line);
|
|
return;
|
|
}
|
|
if (op->op == OperatorNode::OP_ASSIGN) {
|
|
// Replace assignment with implicit conversion
|
|
BuiltInFunctionNode *convert = alloc_node<BuiltInFunctionNode>();
|
|
convert->line = op->line;
|
|
convert->function = GDScriptFunctions::TYPE_CONVERT;
|
|
|
|
ConstantNode *tgt_type = alloc_node<ConstantNode>();
|
|
tgt_type->line = op->line;
|
|
tgt_type->value = (int)lh_type.builtin_type;
|
|
|
|
OperatorNode *convert_call = alloc_node<OperatorNode>();
|
|
convert_call->line = op->line;
|
|
convert_call->op = OperatorNode::OP_CALL;
|
|
convert_call->arguments.push_back(convert);
|
|
convert_call->arguments.push_back(op->arguments[1]);
|
|
convert_call->arguments.push_back(tgt_type);
|
|
|
|
op->arguments.write[1] = convert_call;
|
|
|
|
type_match = true; // Since we are converting, the type is matching
|
|
}
|
|
#ifdef DEBUG_ENABLED
|
|
if (lh_type.builtin_type == Variant::INT && rh_type.builtin_type == Variant::REAL) {
|
|
_add_warning(GDScriptWarning::NARROWING_CONVERSION, op->line);
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
}
|
|
#ifdef DEBUG_ENABLED
|
|
if (!rh_type.has_type && (op->op != OperatorNode::OP_ASSIGN || lh_type.has_type || op->arguments[0]->type == Node::TYPE_OPERATOR)) {
|
|
_mark_line_as_unsafe(op->line);
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
op->datatype.has_type = type_match;
|
|
} break;
|
|
case OperatorNode::OP_CALL:
|
|
case OperatorNode::OP_PARENT_CALL: {
|
|
_mark_line_as_safe(op->line);
|
|
DataType func_type = _reduce_function_call_type(op);
|
|
#ifdef DEBUG_ENABLED
|
|
if (func_type.has_type && (func_type.kind != DataType::BUILTIN || func_type.builtin_type != Variant::NIL)) {
|
|
// Figure out function name for warning
|
|
String func_name = _find_function_name(op);
|
|
if (func_name.empty()) {
|
|
func_name = "<undetected name>";
|
|
}
|
|
_add_warning(GDScriptWarning::RETURN_VALUE_DISCARDED, op->line, func_name);
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
} break;
|
|
case OperatorNode::OP_YIELD: {
|
|
_mark_line_as_safe(op->line);
|
|
_reduce_node_type(op);
|
|
} break;
|
|
default: {
|
|
_mark_line_as_safe(op->line);
|
|
_reduce_node_type(op); // Test for safety anyway
|
|
#ifdef DEBUG_ENABLED
|
|
if (op->op == OperatorNode::OP_TERNARY_IF) {
|
|
_add_warning(GDScriptWarning::STANDALONE_TERNARY, statement->line);
|
|
} else {
|
|
_add_warning(GDScriptWarning::STANDALONE_EXPRESSION, statement->line);
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
}
|
|
} break;
|
|
case Node::TYPE_CONTROL_FLOW: {
|
|
ControlFlowNode *cf = static_cast<ControlFlowNode *>(statement);
|
|
_mark_line_as_safe(cf->line);
|
|
|
|
switch (cf->cf_type) {
|
|
case ControlFlowNode::CF_RETURN: {
|
|
DataType function_type = current_function->get_datatype();
|
|
|
|
DataType ret_type;
|
|
if (cf->arguments.size() > 0) {
|
|
ret_type = _reduce_node_type(cf->arguments[0]);
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!function_type.has_type) {
|
|
break;
|
|
}
|
|
|
|
if (function_type.kind == DataType::BUILTIN && function_type.builtin_type == Variant::NIL) {
|
|
// Return void, should not have arguments
|
|
if (cf->arguments.size() > 0) {
|
|
_set_error("A void function cannot return a value.", cf->line, cf->column);
|
|
return;
|
|
}
|
|
} else {
|
|
// Return something, cannot be empty
|
|
if (cf->arguments.size() == 0) {
|
|
_set_error("A non-void function must return a value.", cf->line, cf->column);
|
|
return;
|
|
}
|
|
|
|
if (!_is_type_compatible(function_type, ret_type)) {
|
|
_set_error("The returned value type (" + ret_type.to_string() + ") doesn't match the function return type (" +
|
|
function_type.to_string() + ").",
|
|
cf->line, cf->column);
|
|
return;
|
|
}
|
|
}
|
|
} break;
|
|
case ControlFlowNode::CF_MATCH: {
|
|
MatchNode *match_node = cf->match;
|
|
_transform_match_statment(match_node);
|
|
} break;
|
|
default: {
|
|
if (cf->body_else) {
|
|
_mark_line_as_safe(cf->body_else->line);
|
|
}
|
|
for (int i = 0; i < cf->arguments.size(); i++) {
|
|
_reduce_node_type(cf->arguments[i]);
|
|
}
|
|
} break;
|
|
}
|
|
} break;
|
|
case Node::TYPE_CONSTANT: {
|
|
ConstantNode *cn = static_cast<ConstantNode *>(statement);
|
|
// Strings are fine since they can be multiline comments
|
|
if (cn->value.get_type() == Variant::STRING) {
|
|
break;
|
|
}
|
|
FALLTHROUGH;
|
|
}
|
|
default: {
|
|
_mark_line_as_safe(statement->line);
|
|
_reduce_node_type(statement); // Test for safety anyway
|
|
#ifdef DEBUG_ENABLED
|
|
_add_warning(GDScriptWarning::STANDALONE_EXPRESSION, statement->line);
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
}
|
|
}
|
|
|
|
// Parse sub blocks
|
|
for (int i = 0; i < p_block->sub_blocks.size(); i++) {
|
|
current_block = p_block->sub_blocks[i];
|
|
_check_block_types(current_block);
|
|
current_block = p_block;
|
|
if (error_set) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
// Warnings check
|
|
for (Map<StringName, LocalVarNode *>::Element *E = p_block->variables.front(); E; E = E->next()) {
|
|
LocalVarNode *lv = E->get();
|
|
if (!lv->name.operator String().begins_with("_")) {
|
|
if (lv->usages == 0) {
|
|
_add_warning(GDScriptWarning::UNUSED_VARIABLE, lv->line, lv->name);
|
|
} else if (lv->assignments == 0) {
|
|
_add_warning(GDScriptWarning::UNASSIGNED_VARIABLE, lv->line, lv->name);
|
|
}
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
|
|
void GDScriptParser::_set_error(const String &p_error, int p_line, int p_column) {
|
|
if (error_set) {
|
|
return; //allow no further errors
|
|
}
|
|
|
|
error = p_error;
|
|
error_line = p_line < 0 ? tokenizer->get_token_line() : p_line;
|
|
error_column = p_column < 0 ? tokenizer->get_token_column() : p_column;
|
|
error_set = true;
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
void GDScriptParser::_add_warning(int p_code, int p_line, const String &p_symbol1, const String &p_symbol2, const String &p_symbol3, const String &p_symbol4) {
|
|
Vector<String> symbols;
|
|
if (!p_symbol1.empty()) {
|
|
symbols.push_back(p_symbol1);
|
|
}
|
|
if (!p_symbol2.empty()) {
|
|
symbols.push_back(p_symbol2);
|
|
}
|
|
if (!p_symbol3.empty()) {
|
|
symbols.push_back(p_symbol3);
|
|
}
|
|
if (!p_symbol4.empty()) {
|
|
symbols.push_back(p_symbol4);
|
|
}
|
|
_add_warning(p_code, p_line, symbols);
|
|
}
|
|
|
|
void GDScriptParser::_add_warning(int p_code, int p_line, const Vector<String> &p_symbols) {
|
|
if (GLOBAL_GET("debug/gdscript/warnings/exclude_addons").booleanize() && base_path.begins_with("res://addons/")) {
|
|
return;
|
|
}
|
|
if (tokenizer->is_ignoring_warnings() || !GLOBAL_GET("debug/gdscript/warnings/enable").booleanize()) {
|
|
return;
|
|
}
|
|
String warn_name = GDScriptWarning::get_name_from_code((GDScriptWarning::Code)p_code).to_lower();
|
|
if (tokenizer->get_warning_global_skips().has(warn_name)) {
|
|
return;
|
|
}
|
|
if (!GLOBAL_GET("debug/gdscript/warnings/" + warn_name)) {
|
|
return;
|
|
}
|
|
|
|
GDScriptWarning warn;
|
|
warn.code = (GDScriptWarning::Code)p_code;
|
|
warn.symbols = p_symbols;
|
|
warn.line = p_line == -1 ? tokenizer->get_token_line() : p_line;
|
|
|
|
List<GDScriptWarning>::Element *before = nullptr;
|
|
for (List<GDScriptWarning>::Element *E = warnings.front(); E; E = E->next()) {
|
|
if (E->get().line > warn.line) {
|
|
break;
|
|
}
|
|
before = E;
|
|
}
|
|
if (before) {
|
|
warnings.insert_after(before, warn);
|
|
} else {
|
|
warnings.push_front(warn);
|
|
}
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
String GDScriptParser::get_error() const {
|
|
return error;
|
|
}
|
|
|
|
int GDScriptParser::get_error_line() const {
|
|
return error_line;
|
|
}
|
|
int GDScriptParser::get_error_column() const {
|
|
return error_column;
|
|
}
|
|
|
|
bool GDScriptParser::has_error() const {
|
|
return error_set;
|
|
}
|
|
|
|
Error GDScriptParser::_parse(const String &p_base_path) {
|
|
base_path = p_base_path;
|
|
|
|
//assume class
|
|
ClassNode *main_class = alloc_node<ClassNode>();
|
|
main_class->initializer = alloc_node<BlockNode>();
|
|
main_class->initializer->parent_class = main_class;
|
|
main_class->ready = alloc_node<BlockNode>();
|
|
main_class->ready->parent_class = main_class;
|
|
current_class = main_class;
|
|
|
|
_parse_class(main_class);
|
|
|
|
if (tokenizer->get_token() == GDScriptTokenizer::TK_ERROR) {
|
|
error_set = false;
|
|
_set_error("Parse error: " + tokenizer->get_token_error());
|
|
}
|
|
|
|
bool for_completion_error_set = false;
|
|
if (error_set && for_completion) {
|
|
for_completion_error_set = true;
|
|
error_set = false;
|
|
}
|
|
|
|
if (error_set) {
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
if (dependencies_only) {
|
|
return OK;
|
|
}
|
|
|
|
_determine_inheritance(main_class);
|
|
|
|
if (error_set) {
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
current_class = main_class;
|
|
current_function = nullptr;
|
|
current_block = nullptr;
|
|
|
|
if (for_completion) {
|
|
check_types = false;
|
|
}
|
|
|
|
// Resolve all class-level stuff before getting into function blocks
|
|
_check_class_level_types(main_class);
|
|
|
|
if (error_set) {
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
// Resolve the function blocks
|
|
_check_class_blocks_types(main_class);
|
|
|
|
if (for_completion_error_set) {
|
|
error_set = true;
|
|
}
|
|
|
|
if (error_set) {
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
|
|
// Resolve warning ignores
|
|
Vector<Pair<int, String>> warning_skips = tokenizer->get_warning_skips();
|
|
bool warning_is_error = GLOBAL_GET("debug/gdscript/warnings/treat_warnings_as_errors").booleanize();
|
|
for (List<GDScriptWarning>::Element *E = warnings.front(); E;) {
|
|
GDScriptWarning &w = E->get();
|
|
int skip_index = -1;
|
|
for (int i = 0; i < warning_skips.size(); i++) {
|
|
if (warning_skips[i].first > w.line) {
|
|
break;
|
|
}
|
|
skip_index = i;
|
|
}
|
|
List<GDScriptWarning>::Element *next = E->next();
|
|
bool erase = false;
|
|
if (skip_index != -1) {
|
|
if (warning_skips[skip_index].second == GDScriptWarning::get_name_from_code(w.code).to_lower()) {
|
|
erase = true;
|
|
}
|
|
warning_skips.remove(skip_index);
|
|
}
|
|
if (erase) {
|
|
warnings.erase(E);
|
|
} else if (warning_is_error) {
|
|
_set_error(w.get_message() + " (warning treated as error)", w.line);
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
E = next;
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error GDScriptParser::parse_bytecode(const Vector<uint8_t> &p_bytecode, const String &p_base_path, const String &p_self_path) {
|
|
clear();
|
|
|
|
self_path = p_self_path;
|
|
GDScriptTokenizerBuffer *tb = memnew(GDScriptTokenizerBuffer);
|
|
tb->set_code_buffer(p_bytecode);
|
|
tokenizer = tb;
|
|
Error ret = _parse(p_base_path);
|
|
memdelete(tb);
|
|
tokenizer = nullptr;
|
|
return ret;
|
|
}
|
|
|
|
Error GDScriptParser::parse(const String &p_code, const String &p_base_path, bool p_just_validate, const String &p_self_path, bool p_for_completion, Set<int> *r_safe_lines, bool p_dependencies_only) {
|
|
clear();
|
|
|
|
self_path = p_self_path;
|
|
GDScriptTokenizerText *tt = memnew(GDScriptTokenizerText);
|
|
tt->set_code(p_code);
|
|
|
|
validating = p_just_validate;
|
|
for_completion = p_for_completion;
|
|
dependencies_only = p_dependencies_only;
|
|
#ifdef DEBUG_ENABLED
|
|
safe_lines = r_safe_lines;
|
|
#endif // DEBUG_ENABLED
|
|
tokenizer = tt;
|
|
Error ret = _parse(p_base_path);
|
|
memdelete(tt);
|
|
tokenizer = nullptr;
|
|
return ret;
|
|
}
|
|
|
|
bool GDScriptParser::is_tool_script() const {
|
|
return (head && head->type == Node::TYPE_CLASS && static_cast<const ClassNode *>(head)->tool);
|
|
}
|
|
|
|
const GDScriptParser::Node *GDScriptParser::get_parse_tree() const {
|
|
return head;
|
|
}
|
|
|
|
void GDScriptParser::clear() {
|
|
while (list) {
|
|
Node *l = list;
|
|
list = list->next;
|
|
memdelete(l);
|
|
}
|
|
|
|
head = nullptr;
|
|
list = nullptr;
|
|
|
|
completion_type = COMPLETION_NONE;
|
|
completion_node = nullptr;
|
|
completion_class = nullptr;
|
|
completion_function = nullptr;
|
|
completion_block = nullptr;
|
|
current_block = nullptr;
|
|
current_class = nullptr;
|
|
|
|
completion_found = false;
|
|
rpc_mode = MultiplayerAPI::RPC_MODE_DISABLED;
|
|
|
|
current_function = nullptr;
|
|
|
|
validating = false;
|
|
for_completion = false;
|
|
error_set = false;
|
|
indent_level.clear();
|
|
indent_level.push_back(IndentLevel(0, 0));
|
|
error_line = 0;
|
|
error_column = 0;
|
|
pending_newline = -1;
|
|
parenthesis = 0;
|
|
current_export.type = Variant::NIL;
|
|
check_types = true;
|
|
dependencies_only = false;
|
|
dependencies.clear();
|
|
error = "";
|
|
#ifdef DEBUG_ENABLED
|
|
safe_lines = nullptr;
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
|
|
GDScriptParser::CompletionType GDScriptParser::get_completion_type() {
|
|
return completion_type;
|
|
}
|
|
|
|
StringName GDScriptParser::get_completion_cursor() {
|
|
return completion_cursor;
|
|
}
|
|
|
|
int GDScriptParser::get_completion_line() {
|
|
return completion_line;
|
|
}
|
|
|
|
Variant::Type GDScriptParser::get_completion_built_in_constant() {
|
|
return completion_built_in_constant;
|
|
}
|
|
|
|
GDScriptParser::Node *GDScriptParser::get_completion_node() {
|
|
return completion_node;
|
|
}
|
|
|
|
GDScriptParser::BlockNode *GDScriptParser::get_completion_block() {
|
|
return completion_block;
|
|
}
|
|
|
|
GDScriptParser::ClassNode *GDScriptParser::get_completion_class() {
|
|
return completion_class;
|
|
}
|
|
|
|
GDScriptParser::FunctionNode *GDScriptParser::get_completion_function() {
|
|
return completion_function;
|
|
}
|
|
|
|
int GDScriptParser::get_completion_argument_index() {
|
|
return completion_argument;
|
|
}
|
|
|
|
int GDScriptParser::get_completion_identifier_is_function() {
|
|
return completion_ident_is_call;
|
|
}
|
|
|
|
GDScriptParser::GDScriptParser() {
|
|
head = nullptr;
|
|
list = nullptr;
|
|
tokenizer = nullptr;
|
|
pending_newline = -1;
|
|
clear();
|
|
}
|
|
|
|
GDScriptParser::~GDScriptParser() {
|
|
clear();
|
|
}
|